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Does Eating Organic Food Help Prevent Cancer? (usatoday.com)

An anonymous reader quotes USA Today: People who regularly eat organic food are less likely to develop cancer than those who don't, according to a new study out of France. A team of researchers studied 68,946 adult volunteers from France who provided information on how often they ate organic food, drinks and even dietary supplements. Participants were given a score, based on how often they eat organic food ranging from "most of the time" to "never" or "I don't know." During two follow-up appointments, one in 2009 and another in 2016, the researchers then tracked cancer diagnoses, the most prevalent being breast cancer. Other cancers observed included prostate cancer, skin cancer, colorectal cancer, non-Hodgkin lymphomas and lymphomas.

People who reported higher organic food scores were less likely to be diagnosed with cancer than the rest of the group. For example, those who consumed the most organic food were 25 percent less likely to have cancer, according to the research. That number grew to more than half when looking at cases of non-Hodgkin lymphoma.

87 of 151 comments (clear)

  1. Because... by illiac_1962 · · Score: 4, Insightful

    Because they are less likely to eat gobs of added sugar. Nothing to do with the purity label of thier food.

    1. Re:Because... by wisnoskij · · Score: 1

      Implying chips, pop, and candy are not the most popular of all Organic goods.
      In fact because of its steeper price, Organic products are more lily to be luxury goods like coffee, chocolates, etc, things largely sweet.

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    2. Re:Because... by wisnoskij · · Score: 3, Informative

      No. It is 2-3 years since last prohibited substance use for a field to be certified organic. So they are very much different fields, and are not ever sprayed with roundup.

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    3. Re:Because... by Aighearach · · Score: 1

      1 lb of organic produce will have more nutrients than 1 lb of the produce grown with fertilizers from the same seed stock. fertilizers do not enhance the growth of every cell in the plant; a lot of nutrients, the same total amount is produced by the plant, but it is now diluted into a larger volume of produce!

      It isn't about labeling, it is about the dilution involved in using growth methods that maximize yield, vs traditional growth methods that maximize quality and intentionally accept lower total yield per input. Claiming that organic and conventional vegetables are exactly the same is like claiming that homeopathic dilution is equivalent to undiluted medicine. It isn't about the label, it is about the physical composition of the substance.

    4. Re:Because... by ShanghaiBill · · Score: 5, Interesting

      perhaps they have adjusted for 'people that eat large amounts of organic food generally being more health concious'.

      TFA quotes several scientists criticising the study because it did NOT correct for other factors. So this could just be "eating organic" being correlated with eating fewer calories and less sugar and processed food. It could also just be a correlation with being more affluent, which is already known to be correlated with better health.

      Studies based on surveys, like this one, should be viewed with far more skepticism than studies based on controlled experiments.

    5. Re: Because... by poity · · Score: 4, Informative

      Organic != Pesticide free

      Plenty of pesticides are used in organic farming, just not synthetic ones designed, for example, to target specific organisms or to break down quickly before reaching consumers.

      As another comment pointed out, wealth is associated with both organic food consumption and better health. As well those who make the conscious decision to buy higher priced organic food have demonstrated a greater awareness of personal health choices (however misguided they may be on the subject of organics and pesticides) and a greater willingness to make an effort into improving their lifestyles, perhaps some stumbling into some that are actually effective.

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    6. Re: Because... by MachineShedFred · · Score: 1

      Those are claims you need to back up with sources of information.

      You just stated a bunch of stuff that could be dried out and used as fertilizer without any form of research to back it up.

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    7. Re:Because... by Anonymous Coward · · Score: 1

      ...and because every step of the distribution chain is completely honest and they never pull a switcheroo and substitute a cheaper product for a more expensive one.

      in restaurant seafood, it's well known that testing reveals over 50% of seafood is mislabeled, just flat out lies. but organic carrot labelling, you can trust carrot labelling, riiiiiight?

      don't be a sucker.

    8. Re: Because... by Presence+Eternal · · Score: 1

      A plant's size is principally governed by its ability to convert water, sunlight, and CO2. Micronutrient content comes from the soil.

      It is credible (actually blindingly obvious) that the argiculture industry is happy to grow plants to large size and low micronutrient density. I suspect most industrial fertilizers only replace things the plant needs to grow big and fast, not the stuff that makes vegetables healthy. But I haven't read up on fertilizer composition. I recall the big use of them is something to do with nitrogen.

      One can certainly grow organic certified food in totally depleted soil of course.

    9. Re: Because... by Anonymous Coward · · Score: 1

      http://non-gmoreport.com/articles/debunking-alternate-facts-pesticides-organic/ = 25 organic-approved synthetic pesticides vs. 900 conventional

    10. Re:Because... by Darinbob · · Score: 1

      It's a difficult variable to keep independent of other variables. Ie, who eats a mostly organic diet but changes nothing else whatsoever in their lifestyle? Also, organic food is more expensive meaning those who buy it tend to be wealthier, and wealth has a strong correlation to better health.

    11. Re:Because... by Applehu+Akbar · · Score: 1

      Because they are less likely to eat gobs of added sugar. Nothing to do with the purity label of thier food.

      And because this is the population that eats less and which exercises more. Were these factors controlled for?

    12. Re:Because... by HiThere · · Score: 1

      I'd guess, unless it's a very strong effect, that it's because those who eat mainly organic food are also likely to do other things that they feel will act to make them healthier.

      That said, one should never believe claims that some pesticide is safe "at measured levels", because you aren't exposed to just one. (One also shouldn't strongly disbelieve the claim. It's just that this is a claim where usually the only available evidence is manipulated by someone who stands to profit by selling the stuff.)

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    13. Re: Because... by rmdingler · · Score: 1
      GP:

      ...and because every step of the distribution chain is completely honest and they never pull a switcheroo and substitute a cheaper product for a more expensive one.

      Disregarding the likelihood the human greed factor plays a role is ill-advised, and in real time, not the percentage bet. Yet, it doesn't discount the fact that advertised organic produce is still more likely to be better for you than the pesticide-ridden common fare produced by industrial farms.

      P:

      You are spreading disinformation FUD.

      This knee jerk FUD proclamation is not a conversation ender, so much as a catchy way to undermine arguments contrary to one's settled belief set without scientific evidence.

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    14. Re:Because... by omnichad · · Score: 1

      That's mostly down to centuries of selective breeding rather than fertilizer use. You would see a much better comparison between heirloom varieties and modern commercial varieties. Though some foods have higher per-fruit yield and nutrition through selective breeding - e.g. avocados.

    15. Re: Because... by ArylAkamov · · Score: 1

      Not an argument.

    16. Re:Because... by Anonymous Coward · · Score: 1

      yep, instead they are sprayed with insane levels of organic certified pesticides, many of which are even worse for you than the synthetic ones like roundup.

    17. Re:Because... by Anonymous Coward · · Score: 1

      organic food has a shit ton of pesticides and poisons in it. organic =/ pesticide free.

    18. Re:Because... by will_die · · Score: 2

      Organic does not mean pesticide, fungicide or any of those cides free. What it does mean is you have to use certain ones. Most of the organic pesticides are horrible to humans, compared to the synthetic pesticides.
      Now where you get less of them, is that pesticides are mainly used on younger plants, and organic plants tend to be harvest when they have aged more, compared to non-organic, so it is more likely that the pesticides have been incorporated into the plants, and made into something else, or have been washed off.

    19. Re:Because... by jrumney · · Score: 1

      Or.. people who can afford to be picky about what they eat, are less likely to be stuck eating cheap trash that gives you cancer.

    20. Re:Because... by ChrisMaple · · Score: 1

      Nice safe organic fertilizer like unsterilized manure.

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    21. Re:Because... by gweihir · · Score: 1

      Very likely they are also more health-aware and hence get more exercise, drink less alcohol and smoke less. It is quite possible the "purity label"-food has no effect at all.

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    22. Re: Because... by Anonymous Coward · · Score: 3, Interesting

      Organic Farmer here. While itâs true that organic farming uses Pesticides and conventional farming uses âsmore preciseâ pesticides. The actual effects of the synthetic pesticide cocktail thatâ(TM)s needed to avoid pests growing resistant to the different agents is not part of the approval process which focuses on toxicity on mammals and to a much lesser degree on water and soil organisms. Itâs also pretty much faux that synthetic pesticides just dissolve and have no effect on Wildlife. The effects on water organisms near crops is really tremendous and usually ends up in high infertility rates of frogs and other amphibious animals. Mainly due to the selective nature of fungal pesticides. Also most conventional fungicides are systemically up by the plant itself in contrast to organic pesticides you simply wash off.

    23. Re:Because... by Megol · · Score: 1

      Chemical pesticides? What exactly do you think the "natural" pesticides used for organic farming are, happy thoughts?
      Organic labeled food often have higher levels of known poisons than conventionally grown food. Those poisons are damaging to human bodies as you put it.
      Most poisons doesn't accumulate.

    24. Re:Because... by wisnoskij · · Score: 2

      Spraying in Organics is not very common because we do not have very many good chemicals to use. For example, the two most common herbicides in organics is first tilling by a wide margin and then fire. I have never heard or anyone using anything else.

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    25. Re:Because... by religionofpeas · · Score: 1

      Studies based on surveys, like this one, should be viewed with far more skepticism than studies based on controlled experiments.

      Studies like this should not even appear in popular press. It should be published in an appropriate journal, and then used as a possible starting point for real research. When a real causal link is confirmed, then it's time to publish an article in the paper.

    26. Re: Because... by aliquis · · Score: 1

      Personally I feel like stuff like pesticides could have some to do with it but I also imagine some of those choosing organic may also chose less refined food all in all. They may also be wealthier or come from a culture which eat more greens affecting their life outcome and health.

    27. Re: Because... by Aighearach · · Score: 1

      Those are claims you need to back up with sources of information.

      No, no, no, no, those are claims you need to have sources of information about before you can analyze them.

      You're just asking to me to convincingly propagandize you, but that isn't my goal, and isn't within my budget.

    28. Re:Because... by Aighearach · · Score: 1

      I did take the time to specify results from the same seed.

      Instead of repeating pap you heard a bunch of times, (golly, I might have already heard it to!) you could always grow a vegetable garden and do a comparison with seeds from the same packet.

      Even without organic vs conventional you can do the same sort of experiment with water; grow two tomato plants in your garden, give one the amount of water that conventional farmers apply, give the other one the least amount of water to maintain plant health. Easy for tomatoes; only water every 2-3 days, after the smallest branches have started to sag slightly. Most of the flavor and nutrients in a tomato come from the soil. Reduced watering decreases yield of the fruit, but it increases root growth! The end result of conventional watering is fairly bland tomatoes that taste OK fresh, and are good when cooked into a sauce. The water-reduced tomatoes have many times the flavor, the flavor is intense and obviously different. And if you make sauce, you need other ingredients to lighten it because the flavor is too strong and acidic otherwise.

      It isn't hard to understand that the roots and leaves serve a different purpose in the production of the fruit, and that different farming practices have different effects on the root, leaf, and fruit.

      It isn't just varieties, it isn't just what additives you apply, it isn't just the soil quality, it isn't just the sunlight, it isn't just the any one thing; it is all of these things, and in all of these things, maximizing production volume per acre is directly opposed to maximizing nutrient quantity.

      Assuming you started from the same seen, you simply will have to sacrifice nutrient quantity to increase production volume! The reason organic vegetables are healthier is simply that it is the only one of the variables that has a label that means "was not maximized for production volume." So with organic, you know that at least that one variable will be at least neutral towards nutrient quantity. We don't even have a word for farming for quality instead of quantity, so the label "organic" stands in for it.

    29. Re:Because... by jemmyw · · Score: 1

      Roundup is a herbicide.

  2. Confounders? by quantaman · · Score: 2

    These studies are really hard to do. I know they tried to control for a lot of stuff but people who eat organic are generally people who not only try to live a healthy lifestyle, but actually spend more money to do it.

    You'd expect them to have a lower cancer rate.

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    1. Re:Confounders? by alvinrod · · Score: 2
      They did look at a lot of other common factors. The full study is available to read. Here are some of the caveats:

      When considering different subgroups, the results herein were no longer statistically significant in younger adults, men, participants with only a high school diploma and with no family history of cancer, never smokers and current smokers, and participants with a high overall dietary quality, while the strongest association was observed among obese individuals (although the 95% CI was large). The absence of significant results in certain strata may be associated with limited statistical power. Regarding the latter association, previous occupational data have indicated a potential interaction between obesity and pesticide use on cancer risk. It can be hypothesized that obese individuals with metabolic disorders may be more sensitive to potential chemical disruptors, such as pesticides.

      Negative associations were observed herein between the risk of cancer and combining both low to medium diet quality and high frequency of organic food consumption. The association between cancer risk and combining both a high-quality diet and high frequency of organic food consumption approached statistical significance. One hypothesis may be that higher intake of pesticide-contaminated products may partly counterbalance the beneficial role of high-quality foods among individuals with a high dietary quality.

      Some limitations of our study should be noted. First, our analyses were based on volunteers who were likely particularly health-conscious individuals, thus limiting the generalizability of our findings. NutriNet-Santé participants are more often female, are well educated, and exhibit healthier behaviors compared with the French general population. These factors may may have led to a lower cancer incidence herein than the national estimates, as well as higher levels of organic food consumption in our sample.

      One of the things that stands out the most is that if you already have a high quality diet, the results are no longer statistically significant. It's not a bad study, but of course the reporting on it jumps to conclusions that might not be true.

    2. Re:Confounders? by ShanghaiBill · · Score: 1

      I know they tried to control for a lot of stuff

      How do you know that?

    3. Re:Confounders? by quantaman · · Score: 4, Insightful

      Exactly, neither one of you have READ THE STUDY YET! https://jamanetwork.com/journa... Why would you ALREADY have pre-formed conclusions about it? Exactly.

      Actually I did read the study, though I don't really have the training (or time) to fully understand everything they did I understood enough to validate that.
      a) They did a good job trying to control for other variables.
      b) They couldn't control for everything because it's really tough to do.

      The point isn't that their research is useless, a 25-ish% drop in cancer is really significant. The point is that this study alone doesn't provide the answers that people want. They found a big correlation between organic food consumption and lower cancer rates, now future studies can start narrowing in on that. Was it the organic food and something in the non-organic pesticides? Was it the types of food that organic food eaters eat? Was it another lifestyle choice that correlates with organic food consumption.

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    4. Re:Confounders? by snapsnap · · Score: 1

      Plus what food doesn't contain carbon? Avoiding food that doesn't contain carbon is pretty much something every human has ever tried to do.

    5. Re:Confounders? by gweihir · · Score: 1

      They are basically impossible to do in this form. You can never control for all the factors that also have an influence. What you can find is that people eating organic food get less cancer. What you cannot find is whether the organic food causes that, unless you do a double-blind study, where one group gets real organic food and the other gets fake organic foods. Then you do that for 50 years or so and you get meaningful results if your groups are large enough, i.e. at least 100 people each. Good luck with setting something like that up and running it. But anything less does not give meaningful results.

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    6. Re:Confounders? by religionofpeas · · Score: 1

      It is impossible to control for confounders.

      Sure, most studies try to do it by running the Cox multivariate analysis model, checking residuals, and then claim they are done. This is a standard feature of the statistical package. You can use it even if you don't fully understand the limitations.

      The problem is that the Cox model assumes the confounders are: linear, independent, and time-invariant. But we know that for many health-related parameters, none of these three conditions hold. Dose/response usually follows a bathtub curve. Bad things enforce each other. For example, high blood pressure is a risk factor because it stresses the arteries. Smoking is bad because it stiffens them (among other things of course). Smoking combined with high blood pressure is much worse than either factor alone, because the mechanisms that the body uses to protect arteries from high blood pressure are especially sensitive to damage from smoking. And as damage accumulates throughout the life span, you can forget about time invariance.

      In addition, most studies don't keep track of all possible confounders. You can't control for things you don't measure. And the confounders that are measured, are often measured with huge uncertainty, such as sending people a questionnaire where they are asked to estimate the amount of french fries they ate last year.

    7. Re:Confounders? by thegarbz · · Score: 1

      Specifically c) they found when attempting to control for subgroups their study was too small and lacked statistical significance.

    8. Re:Confounders? by religionofpeas · · Score: 1

      Isn't the demonstrated fact that if you eat organic = you are likely to have that outcome enough?

      That hasn't been demonstrated, though. Maybe it you did a study, you could find that people living in zipcodes that start with "9" have better school grades. Based on that study, would you argue that we should renumber zip codes so that they all start with "9" ?

    9. Re:Confounders? by blackest_k · · Score: 1

      The interest in this article is really : if i switch to organic food will it improve my health?

      The answer is maybe yes but it is only part of the lifestyle changes you would need to make such as regular exercise.

      It's not a silver bullet but a better diet is part of the answer. Every one seems to be talking about pesticides, but organic will also include less use of preservatives that are used to increase shelf life.

  3. Correlation != Causation by overlook77 · · Score: 5, Insightful

    It's also very possible that people who eat organic food are just more cognizant about nutrition, health, and they food they eat. I'd like to see a study of two groups who both eat healthy and excercise, but one group eats organic food. Not slamming organic food, but I am skeptical.

    1. Re:Correlation != Causation by ChrisMaple · · Score: 1

      Dropping context is dishonest.

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    2. Re:Correlation != Causation by rl117 · · Score: 1

      Are you serious? This meaning is correct, in the field of Chemistry. It has several other meanings in other fields, and "organic farming" is a one of them.

    3. Re:Correlation != Causation by Rick+Schumann · · Score: 1

      I'd mod you up but you're already at +5. You can't cherry-pick just 'diet' and make a correlation that holds water. Overall lifestyle factors greatly into this.

  4. Correlation is not causation by Anonymous Coward · · Score: 1

    Shame on you for that suggestive headline.

  5. Right but... by cshark · · Score: 1

    People who go out of their way to eat organic food also eat less processed food, fewer food additives which everyone knows are problematic, and they exercise more. This is a no duh as far as studies go.

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  6. No by Snotnose · · Score: 1

    This page intentionally left blank.

  7. As the great Oswald Bates put it by mukinrestak · · Score: 1

    Congregation does not erect copulation.

  8. Major problems by gurps_npc · · Score: 4, Insightful

    First is Self Reporting. This study did NOT find that people that ate more organic food got less cancer. Instead it found that people that CLAIMED to eat more organic food got less cancer. That desire tends to be highly correlated with education, wealth, and health consciousness.

    Second the availability of organic food is almost non-existent for the poor. You can't make that claim if you live in a food desert of a slum, next to a toxic waste dump because the grocery stores in those neighbourhoods do not carry organic food.

    I am willing to bet that people that claimed to eat organic food also had much better living conditions in general. I would be surprised if they were not less likely to smoke, drink, live next to toxic waste dumps, live in slums, live next to smoke filled factories, etc. etc.

    Studies of this type are good only to convince people to fund a REAL study where you take half the people and give them organic food and the other half regular food.

    Then measure the result in 10 years.

     

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    1. Re:Major problems by MerlinTheWizard · · Score: 1

      Yes, this study once out was almost immediately and publicly critiqued for its inconsistencies and poor methodological approach. And for good reasons.

      Releasing it as is was a huge mistake. It gave room to a lot of people for instantly using counter-fallacies and trying to claim the opposite: that eating organic food doesn't make a difference, which obviously is an even worse fallacy than the initial claim. Not being able to rigorously prove a danger doesn't make it suddenly safe. I'm observing a current trend slipping towards this kind of reasoning and it's concerning.

      Makes you wonder if that was not the actual intent.

      A proper study of ths kind would be almost impossible to conduct, so you're pretty much left with retrospective data only and obviously incomplete data. Does that mean that we should keep eating shit food with low nutritional content and siginificant levels of all kinds of pesticides? I don't think so.

    2. Re:Major problems by AussieNeil · · Score: 1

      Indeed! Here's a review of this paper by Australia's well regarded nutritionist Rosemary Stanton, which independently has been assessed as presenting "a fair, balanced and accurate assessment of the research study.": https://theconversation.com/re...

      Another way to look at the study findings is that if you are an uneducated older woman who smokes and has a low overall dietary quality, you may have a higher risk of Non Hodgkin's Lymphoma and breast cancer, particularly if you are obese!!

    3. Re:Major problems by rmdingler · · Score: 1

      Considering the sheer number of published studies today, if you use the results of a single study to live your life by, then you're an idiot, independent of your socioeconomic status.

      Like getting your news from a single source, not factoring in the value of many studies is a mistake on the order of parroting the viewpoint of a single 24 hr news source.

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    4. Re:Major problems by religionofpeas · · Score: 1

      Many studies are not necessarily better if they are all sloppy. The problem in nutrition is that most studies are just observational. The controlled trials are often done on animals, and/or short duration, and/or small, and/or poorly controlled. Ideally, you'd want to have good control, on large groups of humans, for most of their life. That's just not possible.

       

    5. Re:Major problems by thegarbz · · Score: 1

      Instead it found that people that CLAIMED to eat more organic food

      That is not a major problem. Sample sizes take care of pathological liars, as do the basis of studies that have no significant impact on the person being studied. I.e. you're not being judged. They aren't asking you to list your sexual fetishes in decreasing order of preference.

      Second the availability of organic food is almost non-existent for the poor.

      Completely irrelevant given the findings that were made: Correlation between consumption of organic food and cancer rate. They did not claim one causes the other.

      I am willing to bet that people that claimed to eat organic food also had much better living conditions in general.

      You don't need to bet. The study asked:
      Higher organic food scores were positively associated with female sex, high occupational status or monthly income per household unit, postsecondary graduate educational level, physical activity, and former smoking status (Table 1)

      Studies of this type are good only to convince people to fund a REAL study

      The study was real. The problem is that people who comment on it appear quite likely to be idiots, more concerned about commenting and poopooing a study than actually reading it.

    6. Re:Major problems by religionofpeas · · Score: 2

      Higher organic food scores were positively associated with female sex, high occupational status or monthly income per household unit, postsecondary graduate educational level, physical activity, and former smoking status

      And yet, in their conclusion they write: "promoting organic food consumption in the general population could be a promising preventive strategy against cancer"

      They could also have written instead: "promoting organic food consumption in the general population could be a promising way to increase monthly income per household unit"

      These are both associations they have found.

    7. Re:Major problems by thegarbz · · Score: 1

      Indeed it could be.

      Great thing about words like "could" they imply possibilities. It is possible, just not proven here. If you want to look at the actual conclusions of the study then read the sentences as they are written in english, and look for those that deal with the conclusions from the data rather than possible explainations.

      You can start with the sentence before: "A higher frequency of organic food consumption was associated with a reduced risk of cancer" That is the only part that deals in absolutes.

      Or you could read the study itself without resorting to soundbytes for a more detailed explaination of the assumptions they made before writing that text. Like this one:
      "One possible explanation for the negative association observed herein between organic food frequency and cancer risk is that the prohibition of synthetic pesticides in organic farming leads to a lower frequency or an absence of contamination in organic foods compared with conventional foods46,47 and results in significant reductions in pesticide levels in urine.48 In 2015, based on experimental and population studies, the International Agency for Research on Cancer49 recognized the carcinogenicity of certain pesticides (malathion and diazinon were classified as probably carcinogenic for humans [group 2A], and tetrachlorvinphos and parathion were classified as possibly carcinogenic for humans [group 2B]). While there is a growing body of evidence supporting a role of occupational exposure to pesticides for various health outcomes and specifically for cancer development,4,50,51 there have been few large-scale studies conducted in the general population, for whom diet is the main source of pesticide exposure.52"

      There along with 8 additional studies for you to read which they referenced as part of their "could" statement.

  9. It's a tough correlation to sustain by HangingChad · · Score: 4, Insightful

    The background cancer rate is one in three. So, with any environmental factor, the numbers are clouded with a lot of noise.

    More likely people who eat organic food think about their health more than people who don't care what they eat. People who make organic choices are likely eating more vegetables, which has already moved the needle on their cancer risk. As an individual, you can't tell if this little thing or that little thing will really lower your cancer risk. What does work is eating like a sane person, exercising, and keeping your alcohol intake in the moderate zone.

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    1. Re:It's a tough correlation to sustain by rmdingler · · Score: 2
      Your post was salient, poignant, and relatable, right up until

      keeping your alcohol intake in the moderate zone

      ... jesus, what are we, savages?

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  10. Did they control for income? by presidenteloco · · Score: 5, Interesting

    Income level is one of the strongest determinants of health.
    Generally, regular organic food purchasers will be above average income, no?

    Did they control for other health-promoting or harming behaviours, which are likely to differ between organic food choosers and general population.

    It could be the pesticides, but it could also be any number of other factors associated with lifestyle, unless these were carefully controlled for in the experiment.

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    1. Re:Did they control for income? by PopeRatzo · · Score: 1

      Income level is one of the strongest determinants of health.
      Generally, regular organic food purchasers will be above average income, no?

      Then why is life expectancy in the US going down compared to Europe?

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    2. Re:Did they control for income? by thegarbz · · Score: 3, Informative

      Did they control for

      Let me stop you there. They didn't need to control anything. They did a study and made a conclusion based on the study. The finding was: "In a population-based cohort study of 68946 French adults, a significant reduction in the risk of cancer was observed among high consumers of organic food."

      That's it. They don't need to control for any other factors to reach this claim. They make no causal claim between the food and the cancer. They do give a couple of possible explanations along with the caveat that when correcting for subgroups they lack statistical significance.

      But since you asked:

      Higher organic food scores were positively associated with female sex, high occupational status or monthly income per household unit, postsecondary graduate educational level, physical activity, and former smoking status (Table 1). Higher organic food scores were also associated with a higher mPNNS-GS. Dietary characteristics by organic food score quartiles are summarized in eTable 7 in the Supplement. Higher organic food scores were associated with a healthier diet rich in fiber, vegetable proteins, and micronutrients. Higher organic food scores were also associated with higher intake of fruits, vegetables, nuts, and legumes and with lower intake of processed meat, other meat, poultry, and milk.

      So yes it would appear that scientists actually know what they are doing, just the people discussing and reporting on science don't.

    3. Re:Did they control for income? by religionofpeas · · Score: 1

      In a population-based cohort study of 68946 French adults, a significant reduction in the risk of cancer was observed among high consumers of organic food.

      reduction: the action or fact of making something smaller or less in amount, degree, or size.

      "Making something smaller" implies causality.

      Their article continues: "Although the study findings need to be confirmed, promoting organic food consumption in the general population could be a promising preventive strategy against cancer.".

      What does "confirming" the "study findings" mean ? The study only found associations. Confirming the association doesn't lead to their conclusion.

      So yes it would appear that scientists actually know what they are doing

      They realize that there are many confounders, but they seem overly optimistic that they have removed most of the effects. Quoting from their paper "residual confounding resulting from unmeasured factors or inaccuracy in the assessment of some covariates cannot be totally excluded."

      They don't even acknowledge that the Cox model is too idealized to be used with any degree of authority. Also, in order to properly control for confounders, you need to have the right data set. If, for example, a healthy lifestyle correlates strongly with consumption of organic food in your study group, then you cannot pick the two parameters apart. You also need groups of people with healthy lifestyle that don't eat organic food, and people that eat organic food but follow a bad overall lifestyle. Those last two groups are usually going to be much smaller, leaving you with very little information (the determinant of the matrix your trying to invert is getting close to zero, which means the errors are going to be big). The more different health parameters you're including in the study, the smaller the different subgroups become, and the bigger the errors.

    4. Re:Did they control for income? by nospam007 · · Score: 2

      "Then why is life expectancy in the US going down compared to Europe?"

      It's called 'health insurance for everybody.'
      You have to actually pay taxes for things like that.

    5. Re:Did they control for income? by CrimsonAvenger · · Score: 2

      Then why is life expectancy in the US going down compared to Europe?

      Hmm, according to the results of a quickie Google, it looks like alcohol abuse deaths are on the rise, ditto drug (prescription and otherwise) abuse deaths. And suicide seems to be on the rise as well....

      So, more people are dying young, bringing the average down....

      --

      "I do not agree with what you say, but I will defend to the death your right to say it"
    6. Re:Did they control for income? by Aighearach · · Score: 1

      When all you know is that a study was published, yes, you do know that it controlled for income level.

      Gaaaaaa, the stupid, it hurts so bad!!!!!!!!!?!!!!1!!!!!!!

  11. What is Organic Food? by Anonymous Coward · · Score: 1

    Besides a marketing label that some producers pay for?

    And where can we find a source of inorganic food to serve as a control group?

  12. Junk food by manu0601 · · Score: 1

    My first idea was that people that eat organic food are more likely to eat healthy food overall. This could be a bias, but it seems the researchers addressed it. The paper states they had a look at junk food, for instance:

    Ultraprocessed food consumption was assessed using the NOVA classification

  13. NEWSFLASH! Health-aware people ... by Qbertino · · Score: 1

    ... are more healthy!

    Next up:
    Water wet!
    Pope catholic!

    News brought to you by CORI - Captain Obvious Research Institute

    --
    We suffer more in our imagination than in reality. - Seneca
  14. "Organic" farming is insufficiently managed. by Futurepower(R) · · Score: 5, Interesting

    Quote from the parent comment: "Plenty of pesticides are used in organic farming..."

    See, for example, The Truth About Organic Farming (Dec. 22, 2009)

    Quote:

    "It has been assumed for years that pesticides that occur naturally (in certain plants, for example) are somehow better for us and the environment than those that have been created by man. As more research is done into their toxicity, however, this simply isn't true, either. Many natural pesticides have been found to be as bad if not worse than synthetic ones.

    "Take the example of Rotenone. Rotenone was widely used in the US as an organic pesticide for decades 3. Because it is natural in origin, occurring in the roots and stems of a small number of subtropical plants, it was considered "safe" as well as "organic". However, research has shown that rotenone is highly dangerous because it kills by attacking the mitochondria, the energy powerhouses of all living cells. Research found that exposure to rotenone caused Parkinson's Disease-like symptoms in rats 4, and killed many species, including humans. Rotenone's use as a pesticide has already been discontinued in the US as of 2005 due to health concerns, but shockingly, it's still poured into our waters every year because it is approved for fisheries management use as a piscicide [poisonous to fish] to remove unwanted fish species. The point I'm driving home here is that just because something is natural doesn't make it non-toxic or safe."

    Other issues: There are other issues that are generally not explored. For example, if a food is labeled "Organic", is it actually that, or is the label not honest?

  15. Diet Questionnaires are terrible by jma05 · · Score: 2

    Diet surveys are notoriously poor in reliability.
    They are lazy and just done because they cost little. They generate bad science.
    Self-reporting over long periods does not work, the surveys are not rigorously validated or are not broadly usable. The questions are often vague and people interpret them differently.

    This does not apply just to this study but correlational studies in nutritional research as a whole.
    Nutritional research often and notoriously produces poorly replicable results that keep flipping back and forth and the enthusiastic coverage of these flips in popular media erodes public trust in the scientific method.
    Until full expert consensus is formed, these lazy studies should not be reported outside scholarly journals.

  16. There are many sub-issues, as I said in my comment by Futurepower(R) · · Score: 3, Interesting

    The fact is, there are many sub-issues, as I said at the end of my comment. I didn't choose the one you like.

    I agree that "conventional pesticides" are often "appallingly dangerous". It is a HUGE mistake, however, to restrict the investigations to conventional pesticides, in my opinion.

    This article does some exploration, imperfectly in some areas: Yes, You Are Definitely Ingesting Pesticides. Here's Why It's Not A Problem. (Aug. 18, 2017)

  17. Re:There are many sub-issues, as I said in my comm by omnichad · · Score: 2

    I understood it just fine. Maybe don't treat complex subject matter that you don't understand as obfuscation.

  18. Organic foods!! by Anonymous Coward · · Score: 1

    Great!! now name me five inorganic foods that I should avoid.

    1. Re:Organic foods!! by ChrisMaple · · Score: 1

      Water with high lead content. Water with high mercury content. Water with high radon content. Water with high arsenic content. Water with high hexavalent chrome content.

      --
      Contribute to civilization: ari.aynrand.org/donate
  19. Re: Does Eating Organic Food Help Prevent Cancer? by hcs_$reboot · · Score: 1

    So this comes to who you believe the more: TFA authors or slashdot editors.

    --
    Slashdot, fix the reply notifications... You won't get away with it...
  20. Right, except backward by raymorris · · Score: 1

    You mostly have it right, you just switched two things.
    Regular food is protected from commercially relevant pests by *insecticides* targeted very specifically to those particular insects, such that a very small amount does the job. Organic produce is treated with toxins such as extract of Deadly Nightshade, which is a general toxin rather than than an insecticide. Because it's not targeted to specific insects, Deadly Nightshade and the other organic toxins are far more dangerous to humans and have to be used in far greater amounts in order to be effective.

  21. Because it's a lot more pesticide by raymorris · · Score: 2

    That would make no sense because organic produce has three to four times as much pesticide. Rather than modern insecticide that targets the problem insects, organic produce uses general toxins such as that produced by Deadly Nightshade. Since the organic toxin isn't targeting the relevant insects specifically, much more of it has to be used to be effective, and it's far more dangerous to humans.

    1. Re: Because it's a lot more pesticide by Anonymous Coward · · Score: 1

      Organic tries to avoid using insecticides, by the order in which crops are grown, avoidance of monoculture and having your crops grown in a balanced ecosystem.

    2. Re:Because it's a lot more pesticide by nospam007 · · Score: 1

      "organic produce uses general toxins such as that produced by Deadly Nightshade. "

      So? Potatoes are 'deadly nightshades' as well, beans are toxic if eaten raw just as lots of other vegetables, organic or not.

  22. Repeat of old study. by will_die · · Score: 1

    There have been previous studies of the same type. The problem is you are more likely to be eating organic, and know that you are eating organic, if you are really interested in your health. This is not because eating organic is actually healthier but because it is a common meme that it is.*
    If you are interested in your health you are probably doing other things to make sure you are healthy.
    So if you are worried about your health and are monitoring it there is probably a really good chance that you are going to be healthier than someone who is not.

    *As someone whose parents still raise organic, range-raised cattle and have many relatives in organic farming and ranching. Organic is better for you and you should definitely be purchasing and eating only organic food.

  23. The Slashdot story involves VERY sloppy thinking. by Futurepower(R) · · Score: 2

    Note that the Slashdot story, "Does Eating Organic Food Help Prevent Cancer?" involves VERY sloppy thinking.

    The 1st comment says, "Because they are less likely to eat gobs of added sugar. Nothing to do with the purity label of their food."

    There are many possible reasons for a reduction in cancer. Another comment, +5, says, "Income level is one of the strongest determinants of health. Generally, regular organic food purchasers will be above average income, no?"

    My point: Think about ALL the issues. Don't get involved with an issue that is so shallow in its logic. To me that is obvious, but what I have said has not been received well.

  24. Causality by markdavis · · Score: 1

    Already been posted but this "survey" really says absolutely nothing. The only thing that really matters is causality and a correlation doesn't mean there is any causality. It just confirms what common sense would tell anyone: health-conscious people eat more organic food. That doesn't mean organic food *causes* (or contributes) someone to be more healthy. Health-conscious people probably also eat less sugar, saturated fat, carbs, and calories. They probably have a more widely varied diet and consume more fresh vegetables. They probably exercise more often and take supplements. They probably smoke less, drink less alcohol, and get better sleep. They probably have higher income and live in less polluted, cleaner areas and are more educated about healthy lifestyles, monitor their health and have access to more and better healthcare. They even might just be more genetically pre-disposed to be healthier.

    Show me a long-term, repeatable, double-blind study, with adequate controls. Then it will mean something.

    1. Re:Causality by Megol · · Score: 1

      While I agree there are indications that taking supplements are in many cases worse than not taking any. IMHO probably because most people do not understand that higher doses aren't better.

  25. Re:Paid for by whoever would benefit from this by rl117 · · Score: 1

    It's not the genetic modification or nutritional content which is in question, it's the pesticide use that the modification enables. Are the chemicals in roundup deleterious to health when consumed in small quantities over the long term? That's still an open question, and it wouldn't surprise me if the answer turns out to be that it does raise the likelihood of various cancers. This particularly study might be bad, but we still need some honest answers to the effects of practices such as roundup use as a pre-harvest dessicant. We know there are trace amounts in the harvested seeds and food products, the question is what effect that has in practice.

  26. Tries and fails by raymorris · · Score: 1

    Spoiler alert:

    Organic produce found in grocery stores does in fact have three to four times as much pesticide as standard produce.

    If they are "trying to avoid using pesticides", they are failing horribly.

    Organic has nothing whatever to do with monoculture or balance. Have a look at any actual commercial organic farming operation. It's just as monoculture as the one next door that uses more effective pest control. The happy farmer is just a commercial.

    "Organic" means exactly one thing on a food label -
    Uses dangerous toxins similar to those produced by certain plants and fungi, as opposed modern insecticide control methods that aren't toxic to mammals.

    Here's another spoiler -
    Hidden Valley Ranch is made in a factory too. There is no happy smiley place where kids love broccoli. That only exists in the commercial.

    Spoiler three:

    Beyonce isn't making your $85 lipstick. It comes from China, after being made in the same factory as the Walmart lipstick. Once again, Beyonce is just in the commercial.

  27. Junk science with an axe to grind by mileshigh · · Score: 1

    Junk science. The wording of the conclusion makes it obvious that this "study" is just blatant organic boosterism. In effect, the conclusion is saying "eat organic to reduce cancer risk big time," something not at all supported by the study.

    "...a significant reduction in the risk of cancer was observed among high consumers of organic food."

    "reduction" is a loaded word that hints at causality.

    It also talks about risk, which is incorrect. The study studied incidence of cancer which is not by itself the same thing. Risk reduction is not at all demonstrated since that would require proving causality.

    "Significant" (not statistically significant; here, it's used to mean "big") in a conclusion is also a red-flag judgemental adjective that has no place in a real paper's conclusion.

    A more responsible wording would be "high consumers of organic food were observed to have a lower incidence of cancer [insert confidence interval here]."

    1. Re:Junk science with an axe to grind by thegarbz · · Score: 1

      Junk science. The wording of the conclusion

      Sorry but horseshit. The wording of the conclusion is the only one reachable given the boundaries of the experiment.

      "reduction" is a loaded word

      Words aren't "loaded" words have written meanings. If you think the word is loaded then it's likely you are applying your own biases to it while reading. I suggest you don't do that while reading scientific publications.

      It also talks about risk, which is incorrect. The study studied incidence of cancer which is not by itself the same thing.

      Risk is a frequency and a consequence. The study studied the incidence over a given time period which was a reduction in frequency which by extension is a reduction in risk.

      in a conclusion is also a red-flag judgemental adjective that has no place in a real paper's conclusion.

      Fortunately it wasn't in the paper's conclusion. It was in the list of the main claim. If you want to read the conclusion they present some numbers for you including your confidence interval. But you're more interested in sound bytes so you can make your "junk science" claim rather than actually looking at people's work, so you get simpler words you can complain about.