Calorie Burning Coke Coming Soon
The Fun Guy writes "Coca-Cola and Nestle are getting together to introduce a new beverage "proven to burn calories". Enviga will be in the U.S. Northeast in November, nationwide in January 2007. How does it burn calories? With green tea extracts, calcium, and caffeine. No word on how many milligrams caffeine per can. "
"Optimum blend of green tea extracts (EGCG)"
Nearly every single word on here is marketing buzz speak. Boo.
I don't know what University Dr. Applebaum threw money at to call herself a doctor but I certainly hope I never attend it. Call me a hardass but Applebaum just lost any respect from me that 'doctor' & 'chief scientist' could have given her.
Did anyone else notice that this sounded like a 3 am infomercial for Bowflex?
My work here is dung.
It already is their greatest scam.
Slashdot Burying Stories About Slashdot Media Owned
Have you considered that perhaps it's digestion/metabolization ends up burning more calories than it can provide?
Yes, it's called the thermic effect of food or TEF and can be simplified to the following: TEF = total kcals consumed x 10% which of course means that 10% of anything you consume *might* be burned off leaving you with net positive calories. Think of it this way.... organisms eat to survive, not to lose weight.
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There have been many, many studies about green tea (which contains a lot of EGCG) and obesity. This data is years old too... EGCG being useful in obesity isn't even news. Magic? Not hardly. Yes, 2,4-DNP is still the king of obesity drugs, but it hasn't been legal since 1930 in humans for a reason.
There are many ways to fight obesity, upregulating the metabolism is one of them. Decreasing the effeciency of processing/storing food, which results in more calories excreted in feces, is another. (think leptin signalling, hypothalamic setpoint, PPARalpha agonists, Xenical/chitosan... oh and EGCG does this with carbs) Changing behavior underlying emotional eating (low serotonin), food compulsions (neuropeptide Y), or lack of energy/desire to exercise is another. (antidepressants, stimulants) Changing hunger/fed signalling by improving leptin sensitivity/transport, insulin sensitivity, etc makes a difference too. (omega-3 fatty acids, oh and EGCG improves insulin sensitivity...)
EGCG:
1. Inhibits fatty acid synthase
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=p ubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=164 04708&query_hl=165&itool=pubmed_DocSum
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=p ubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=166 11078&query_hl=165&itool=pubmed_docsum
2. Upgrades hypothalamic AMPK to suppress adipogenesis and induce apoptosis of adipocytes
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=p ubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=162 36247&query_hl=165&itool=pubmed_DocSum
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=p ubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=159 76140&query_hl=165&itool=pubmed_DocSum
3. Increases fat oxidation, metabolism (likely through COMT inhibition and indirect gene expression)
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?itoo l=abstractplus&db=pubmed&cmd=Retrieve&dopt=abstrac tplus&list_uids=10584049
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?itoo l=abstractplus&db=pubmed&cmd=Retrieve&dopt=abstrac tplus&list_uids=10702779
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=p ubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=157 38931&query_hl=165&itool=pubmed_DocSum
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Since nobody has these parasites nowadays, these diseases are now more common.
Tapeworms are *very* common in some areas of the world. For instance, just last week I saw the MRI of a patient with trichinosis. Parasites in the brain are a baaaad thing and not as uncommon as you might think.
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...post-graduate work?
First off, your sentence is broken because you inserted "obtained" recklessly. Secondly, your position disagrees with Snopes.
Thirdly, your use of the thermic effect of food is a bit wonky. 10% is, first off, an average estimate. Protein can cost you as much as 30%. Fat costs you very little. Secondly, TEF describes how many calories you will spend consuming the food in question. Conversely, it can be used to calculate how many calories of a given type of food one would need to recover from expenditure. What a bomb calorimeter gets from food is clearly not the same as what a human body gets from it. There are plenty of things that humans can eat that cannot sustain them calorically. Just ask Metamucil...
Fourthly (never had to go that far before), just think about it:
Even drinking cold water causes you to burn calories. Your body ends up doing the work to bring the water up to body temperature. How would digesting a highly fibrous water-stalk not take effort?
Yes, celery has a few digestible kcals per stalk, but you more than outstrip that in digestion. Will those extra burned calories make a marked difference? God no, but you're still on the wrong side of the argument. Whipping out your PhD just shows how much trouble you are having defending your position. I certainly hope I never need any of your work. To be considered right in an argument, it helps to actually be right. I don't have a PhD, but if the point of getting one is to have something to wave around when you're clearly wrong, I think I'll pass.
The most serious of these dangers would be a runaway infection of the deep fatty tissues.
If you are constricting blood flow to the area you are slowing the arrival of neutrophils, as well as providing a smorgasbord for bacteria. The worst of these would be Staph. aureus which is easy to introduce into fatty tissues through small skin wounds. When S. aureus is introduced into another subdermal tissue with (normally) limited blood flow -- the fascia -- the result is usually an aggressive infection, necrotizing fasciitis. There is much more food energy for opportunistic microbes in dying adipose tissues, and many of them are much more mobile than macrophages when there is lowered blood flow.
The second problem is what happens to the stored fats. They don't just vanish into thin air. There are one of two possibilities: they're released into the blood stream until they are stored as fat elsewhere (or until you die of hypertriglyceredemia), or they are excreted (hard on the liver, hard on the kidneys, risk of cholesterol stone formations). They aren't just "burned" because at 9kcal/g significant weight loss through a non-excretory pathway would result in serious hyperthermia.
Whether it is riskier to carry a huge triglyceride burden around in one's blood and other ECF fluids (obese people may already be doing that, but increasing blood fatty acid levels is likely to provoke a nonlinear response) or to deal with the breakdown products in an elimination process, is unclear.
What needs to be understood is to what extent the breakdown of adipose tissues in this fashion drives weight loss because the mice are too ill to eat. The third and second last paragraphs in the article you linked to points that out, but doesn't stress enough how rigorously this would have to be tested before being considered reasonably safe for (even morbidly obese) humans.