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The Mathematics of Obesity

Hugh Pickens writes "The NY Times reports that Carson C. Chow, an MIT-trained mathematician and physicist, has taken a new look at America's obesity epidemic and found that a food glut is behind America's weight problem, with the national obesity rate jumping from 20 percent to over 30 percent since 1970. 'Beginning in the 1970s, there was a change in national agricultural policy. Instead of the government paying farmers not to engage in full production, as was the practice, they were encouraged to grow as much food as they could,' says Chow. 'With such a huge food supply, food marketing got better and restaurants got cheaper. The low cost of food fueled the growth of the fast-food industry. If food were expensive, you couldn't have fast food.' Chow and mathematical physiologist Kevin Hall created a mathematical model of a human with hundreds of equations, boiled it down to one simple equation, and then plugged in all the variables — height, weight, food intake, exercise. The slimmed-down equation proved to be a useful platform for answering a host of questions. For example, huge variations in your daily food intake will not cause variations in weight, as long as your average food intake over a year is about the same. Unfortunately, another finding is that weight change, up or down, takes a very, very long time. Chow has posted an interactive version of the model on the web where people can plug in their information and learn how much they'll need to reduce their intake and increase their activity to lose."

6 of 655 comments (clear)

  1. Why the Campaign to Stop America's Obesity Fails by martijnd · · Score: 4, Insightful

    http://www.thedailybeast.com/newsweek/2012/05/06/why-the-campaign-to-stop-america-s-obesity-crisis-keeps-failing.html

    According to this its a change of diet (as in the promoted healthy diet is anything but) in the 1970's and way too many sugars.

  2. Processed sugar is the problem by Kergan · · Score: 5, Insightful

    Fruit isn't so bad, because it has fiber -- this keeps part of the sugar in your bowls, until it gets refined by bacteria and farted. Plus you need the vitamin. Fruit juice is another story: might as well drink beer.

    Some videos on sugar from the UC:

    http://www.uctv.tv/skinny-on-obesity/

  3. Re:Junk food is the problem by bjourne · · Score: 4, Insightful

    Neither preservatives nor flavor enhancers cause obesity. They may be unhealthy to eat for other reasons but when it comes to overweight problems it is calories that count.

  4. Re:Junk food is the problem by Anonymous Coward · · Score: 5, Insightful

    I'm tired of this lie. My wife went on a health food kick 2 years ago. We've pretty much stopped eating out. Our food costs have dropped 20%. We're not eating fancy snobby "healthy" food, just real food. Do you really believe that $7x3 for meals at McD's is affordable, but $4 for a pound of hamburger, $.50 for 3 fresh potatoes, and 2 cups of flour for buns costs more than $21? Really? Add a head of lettuce, a whole bottle of dressing, and the oil to fry the potatoes, and I'm still well under your $21 "can't afford to eat healthy" meal.

    If you don't have the time to cook this simple meal, the you're lying to yourself. You're just lying to yourself. The money you saved buys you an hour a day of labor if you're anywhere near the minimum wage. And that's a fat western meal. If you think a little about eating decently, instead of just replicating mcdonalds, you can do so amazingly cheaply. Rice? Cheap. Flour? Cheap. frozen veggies? Pretty damn cheap, considering. You don't need organic arugula in January to be healthy.

  5. Re:Junk food is the problem by netsavior · · Score: 4, Insightful

    Cooking a meal for a family would cost a lot less than taking them all to McDonald's.

    I don't know where this idea that fresh fruit and vegetables are expensive comes from. They're the cheapest way of getting food, as long as you have time to cook (and 10-20 minutes a day is enough for that if you don't do anything too complicated).

    This is one of the most annoying and common fallacies in this whole discussion.

    Did you grow up in a house in the suburbs, with a functioning kitchen, at least one parent working only 9-5 and a real grocery store within walking/car/bus distance? Congratulations, you had a better food situation growing up than 60% of people in the united states.

    I have a nice house in the suburbs, a kitchen with a functioning stove, a car that works every time I turn the key in the ignition, a fridge and freezer that work, a decent set of pots and pans, all the right knives, a cutting board, all the right spoons, a whole rack full of spices, an understanding of cooking given to me by my homemaker motherm and I can afford all this stuff on only one job.

    It costs me $5-$10 to prepare a decent dinner for my family... But i interact with $400,000 worth of stuff most people don't have to do it. The most significant of which is priceless: My upbringing in a household where people were educated, mildly successful, and proficient at cooking.

  6. Re:Fruit is the problem by netsavior · · Score: 4, Insightful

    yeah cause somebody who works exhausting menial labor for 8-12 hours a day is comming home to extrude noodles in their combo bathroom/kitchen sink, using fresh eggs from a grocery store they had to hop 3 busses to get to.