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--- Speaking of Quackery, there is no science standing behind the Glycemic
The Glycemic Index was arrived at empirically - which is the only way such a table could be developed. A standard amount of each carbohydrate was ingested, and the resulting blood glucose curve was measured over time - by volunteers. Those curves were averaged and then put onto an arbitrary scale (the GI) to show the effect upon blood glucose of each of the various carbohydrates. Only empirically was it discovered that some carbohydrates convert to blood glucose very, very slowly (chana dal, for example). And that at least one carb affects blood glucose even more rapidly than pure glucose (maltodextrose, as I recall). Go figger. I eat anything, but stay keenly aware of the GI of my intake - then use some combination of acarbose, nateglinide, and isometrics to avoid major BG peaks. After literally thousands of finger-sticks and careful record-keeping to build a knowledge base that permits me to make valid predictions, I can attest to the validity of the GI and its value in managing peaks. I think the latest diet fad, which purports to exploit the GI as a weight management tool, might be quackery. I have found no published bariatric research to support the claims made by the people touting those schemes - and my standard for "quackery" is medical claims without substantiation by peer-reviewed research. Ike
In article >The Glycemic Index was arrived at empirically - which is the only way such a >table could be developed. A standard amount of each carbohydrate was >ingested, and the resulting blood glucose curve was measured over time - by >volunteers. Those curves were averaged and then put onto an arbitrary scale >(the GI) to show the effect upon blood glucose of each of the various >carbohydrates. >Only empirically was it discovered that some carbohydrates convert to blood >glucose very, very slowly (chana dal, for example). And that at least one >carb affects blood glucose even more rapidly than pure glucose >(maltodextrose, as I recall). Go figger. This is not difficult. One molecule of maltose consists of two molecules of glucose minus one molecule of water. So a molecule of maltose masses 1.9 times that of a molecule of glucose, but works as 2 molecules, and this conversion is very fast. >I eat anything, but stay keenly aware of the GI of my intake - then use some >combination of acarbose, nateglinide, and isometrics to avoid major BG >peaks. After literally thousands of finger-sticks and careful record-keeping >to build a knowledge base that permits me to make valid predictions, I can >attest to the validity of the GI and its value in managing peaks. >I think the latest diet fad, which purports to exploit the GI as a weight >management tool, might be quackery. I have found no published bariatric >research to support the claims made by the people touting those schemes - >and my standard for "quackery" is medical claims without substantiation by >peer-reviewed research. >Ike -- This address is for information only. I do not claim that these views are those of the Statistics Department or of Purdue University. Herman Rubin, Department of Statistics, Purdue University hrubin@stat.purdue.edu Phone: (765)494-6054 FAX: (765)494-0558
"Herman Rubin" news:dh6s1o$4cos@odds.stat.purdue.edu... >>Only empirically was it discovered that some carbohydrates convert to >>blood >>glucose very, very slowly (chana dal, for example). And that at least one >>carb affects blood glucose even more rapidly than pure glucose >>(maltodextrose, as I recall). Go figger. > > This is not difficult. One molecule of maltose consists of > two molecules of glucose minus one molecule of water. So > a molecule of maltose masses 1.9 times that of a molecule > of glucose, but works as 2 molecules, and this conversion is > very fast. Thanks, but the GI is generated by ingesting 50g (about 2oz) of a digestible carb, then measuring the change in BG over time (2H). 50g of pure glucose can't contain less glucose than 50g of maltodextrose, so....Did I fail another Purdue IQ test?? A trade, a team, a union, a drink, a band! Go Boilermakers! Ike
In article >"Herman Rubin" >news:dh6s1o$4cos@odds.stat.purdue.edu... >>>Only empirically was it discovered that some carbohydrates convert to >>>blood >>>glucose very, very slowly (chana dal, for example). And that at least one >>>carb affects blood glucose even more rapidly than pure glucose >>>(maltodextrose, as I recall). Go figger. >> This is not difficult. One molecule of maltose consists of >> two molecules of glucose minus one molecule of water. So >> a molecule of maltose masses 1.9 times that of a molecule >> of glucose, but works as 2 molecules, and this conversion is >> very fast. >Thanks, but the GI is generated by ingesting 50g (about 2oz) of a digestible >carb, then measuring the change in BG over time (2H). 50g of pure glucose >can't contain less glucose than 50g of maltodextrose, so....Did I fail >another Purdue IQ test?? Yes it can. 50g of maltose plus about 3g water gives about 53g glucose. One molecule of maltose is formed from two molecules of glucose, with a molecule of water subtracted. The reaction reverses easily. There is no shortage of water in the digestive system. -- This address is for information only. I do not claim that these views are those of the Statistics Department or of Purdue University. Herman Rubin, Department of Statistics, Purdue University hrubin@stat.purdue.edu Phone: (765)494-6054 FAX: (765)494-0558
Quackery Oats? "Ignoramus19652" news:5m2Ze.102019$XF3.55678@fe29.usenetserver.com... On 23 Sep 2005 17:03:07 -0700, Mr-Natural-Health > There is no science standing behind the Glycemic Index. Correct. All bullshit and smoke and mirrors, paid for by grain companies. > Show me the proof that the Scientific Method has proved that the > Glycemic index even exists, or that there is any agreement on what the > specific rating for a specific food item actually is or has validity to > it whatsoever. Check out http://igor.chudov.com/tmp/gi.pdf -- 223/174.7/180 Start « Previous 1 2 3 Next » Related Discussion: Re: A diabetic trying to get private medical insurance (3 posts) USA and other countries should ban importation of Ayurvedic medications that pose health risk (1 posts) Is Your Home a Healthy Home? (2 posts) Diet Coke with Splenda!!!! A WINNER!!!! (19 posts) Top Discussions From Our Archives Health, financial freedom-Free DVD - Don't miss out on pre-ground level Other Discussion Categories Diabetes Symptoms
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