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/// The results showed that both protein and fat reduced the glycemic response elicited by oral glucose in normal humans. The effects of protein and fat were in
by ajcarpy2005 13y ago
/// The results showed that both protein and fat reduced the glycemic response elicited by oral glucose in normal humans. The effects of protein and fat were independent of each other, but gram-for-gram, protein had a 2 to 3 times larger effect than fat. Fat reduced glycemic responses to a greater extent in subjects with low FPI, whereas protein had more effect in subjects with a high WC and a high intake of dietary fiber.
SOURCE: http://m.jn.nutrition.org/content/136/10/2506.full http://m.jn.nutrition.org/content/136/10/2506.full
/// These data indicate that protein given with glucose will increase insulin secretion and reduce the plasma glucose rise in at least some type II diabetic persons.
SOURCE: http://www.ncbi.nlm.nih.gov/pubmed/6389060 http://www.ncbi.nlm.nih.gov/pubmed/6389060
It didn't take me long to find these two papers which find evidence of the antagonistic effect on glucose & insulin by the consumption of fat and protein. It doesn't look like nonsense to me.
Fat soluble vitamins and even chemicals like Caffeine or even Glutathione are absorbed more eficiently when mixed with fat.
Not that nature is perfect but it does get a lot of things right...whole fat milk seems to likely be more optimal than reduced fat milk.
- jp555 13y agohttp://ajcn.nutrition.org/content/66/5/1264.full.pdf#page=1&.. http://ajcn.nutrition.org/content/66/5/1264.full.pdf#page=1&.... The data shows beef causes a much larger insulinogenic response than rice. There is little there isolating fat, but your first link is interesting.
- ajcarpy2005 13y agoHighly interesting! This is new info to me. It seems the Insulin Index may be a more reliable predictor of the insulin response of foods than either the glycemic index or the glycemic load index. You mentioned there is very little other than fat in beef but don't forget that there's mostly protein. Now we just need studies showing which Amino Acids are the 'worst offenders.' I tried finding any info about whether meat contains any actual insulin based on a hunch/hypothesis but did not find anything. Anyway, from what I've read, both blood glucose & insulin should be kept at reasonably stable levels. (ie. not too high) Therefore, maybe a combination of glycemic load index and insulin index would be helpful. Also, knowing now the effect of beef on insulin, I think it means we should be careful to eat small portions of meat or limit how often we eat meat. I'm really amazed that these findings are only now being made.
- jp555 13y ago> You mentioned there is very little other than fat in beef but don't forget that there's mostly protein. No, I meant that the experiment I linked to didn't test fat's insulin stimulating ability in isolation. I didn't mean to suggest there's little other than fat in beef. Testing the various amino acids would probably not be very useful. Do not subjugate fundamental principles to minor details. Which is also important when considering the effects of insulin. Basically it's not important at all as long as you don't eat too much food. Eating appropriate amounts of food is a fundamental principle; worrying about insulin levels is a minor detail. > I think it means we should be careful to eat small portions of meat or limit how often we eat meat. No, it does not. That may be confirmation bias at play. Are you a vegetarian/vegan? Remember that one of insulin's roles it to move nutrients from the bloodstream and into cells. beef is a very nutritionally dense food; you would need to eat 5 pounds of broccoli to get he same protein in an 8oz steak (http://www.wolframalpha.com/input/?i=100g+steak+vs.+1000g+broccoli http://www.wolframalpha.com/input/?i=100g+steak+vs.+1000g+br...). So it makes sense that when more nutrients enter the bloodstream, more insulin is required to move it all into our tissues. Carbs are the macronutrient "closest" in form to cellular fuel (glycogen). It takes a LOT more work to use protein as fuel than it does to use carbs. This is known as the "thermal effect" of food; how much energy is required to convert food into cellular fuel. .... and now I'm rambling... :P