I didn't say insulin converted carbs to fat, what I said was, insulin spikes lead to bad things happening in your body including storage of carbs as fat:
Originally Posted by smokepole
.... your blood sugar spikes, your body dumps insulin in response, which causes bad stuff to happen including converting and storing carbs as fat in your body.
Insulin spikes cause blood sugar drops, and blood sugar levels influence appetite; it you eat more, especially the wrong foods, you gain weight as fat: Study links blood sugar imbalance with increased appetite
"".....One apparent major determinant of a food�s appetite sating potential is its glycaemic index (which gives a measure of the speed and extent a food releases sugar into the bloodstream). Basically, the higher a food�s GI, the less satisfying it tends to be. Of 20 studies published between 1977 and 1999, 16 showed that low GI foods promoted the satisfaction derived from that meal and/or reduced subsequent hunger [4]. Overall, the results of the studies show that an increase in the GI by 50 per cent reduces the satisfaction it gives by about 50 per cent.
One of the theories about how a food�s GI influences its ability to quell appetite has to do with fluctuation in blood sugar levels. This concept was tested recently in a group of overweight and obese women [5]. All the women in this study were fed the same breakfast and lunch. This was supplemented with a glucose (high GI) drink. On one occasion the women consumed the glucose drink at breakfast. On another occasion, the drink was consumed in eight portions throughout the day. The women had their appetite assessed at hourly intervals during the day, as well as blood levels of both glucose and insulin.
Compared to those taking the sugar drink in eight portions throughout the day, those having it in one sitting at breakfast were more hungry four hours after breakfast and several hours after lunch. These differences appeared to be more closely linked to levels of blood glucose than insulin. The authors of this study concluded that their findings support the idea that changes in blood glucose can affect appetite.
The evidence suggests that those who want to put a natural brake on their appetite should emphasise low-GI foods in their diets. This doesn�t just mean keeping a check on sugary soft drinks, of course. It also means controlling intake of many starchy carbohydrates such as bread and breakfast cereals. It is perhaps the generally high GI nature of these foods which explains why individuals often say that if they eat these foods for breakfast, they get hungrier in the morning compared to eating nothing.""
References:
1. Lean M E, et al. Weight loss with high and low carbohydrate 1200 kcal diets in free living women. Eur J Clin Nutr 1997;51:243-248
2. Wien M A, et al. Almonds vs complex carbohydrates in a weight reduction program. Int J Obes 2003;27:1365-1372
3. Young CM, et al. Effect of body composition and other parameters in obese young men of carbohydrate level of reduction diet. Am J Clin Nutr 1971;24:290-6
4. Roberts SB. High-glycemic index foods, hunger, and obesity: is there a connection? Nutrition Review 2000 58:163-169
5. A high-glycemic meal pattern elicited increased subjective appetite sensations in overweight and obese women. Arumugam V, et al. Appetite;2007 25 July [Epub ahead of print]
And E, before you say this study is "junk science" contrast it with the studies you've cited.
Seriously, I'm not sure why I bother to argue with a guy who continually cites the "food pyramid" as his basis.
Produced by the USDA. Whose biggest constituency is grain farmers.
