Welcome to The Fast Diet › The official Fast forums › Food › Top tips › Food Insulin Index
This topic contains 3 replies, has 3 voices, and was last updated by Marty Kendall 3 years, 4 months ago.
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15 Jan 17
I had never heard of this, until I did an internet search on a hunch, & therefore doubt many other people on this site have heard of it either. I did the search since I have read of the shortcomings of the glycemic index, glycemic load model – essentially they only look at glucose so the effects of artificial sweeteners, fructose, fats, etc, are not considered.
To improve on the GI/GL model, the Food Insulin Index (FII) measures the bodies insulin response to ingesting food versus simply looking at blood glucose levels (for example, foods containing high fructose levels do not cause Blood sugar spikes but can cause insulin spikes). Helps explain why some foods, previously considered good for diabetics or weight loss, may not fit the “bill”.
Anyhow, worth a read.
Following articles review some recent research, or provide more info. https://optimisingnutrition.com/2015/03/30/food_insulin_index/
19 Jan 17
I just had a look at the list. In all honesty, I didn’t see that much difference between the ratings of those foods on the insulin index compared to a GI graph. Everything in the high insulin response category is just as I would expect, as I think of those foods in light of Glycemic Index. The only exception is the raisins, which I would have expected to be higher, or at least I know when I eat them they are ‘morish’ and spark cravings, which indicates to me that my body possibly does respond with an insulin spike and drop.
In general, I agree that the GI is a good tool & simplest to use.
Second link provides some interesting differences. Low fat dairy products tend to be double, or more, on the FII vs GI. Examples given are low fat strawberry yogurt (FII 84, GI 21): low fat cottage cheese (FII 52, GI 10), etc.
What isn’t discussed in what I saw is whether or not those products incorporate any non-sugar sweeteners (agave, stevia, sucralose, etc). Often some sort of sweetener is added to low fat products to offset lack of fat/make them “palatable” . I presume non-sugar sweeteners since the GI is low.
Some studies (according to Dr Fung & others) show that while non-sugar sweeteners may be low on GI, the body interprets them as sugar & secretes insulin (“sugar” receptors can’t tell the difference). The author in this case states it is dairy protein causing the effect, but only list low fat dairy products as having the wide differences!
Something to consider, but think more research is likely needed.
20 Mar 17
The insulin index is better than the GI because it measures the insulin which is the fundamental problem for people who are insulin resistant. A low GI meal could still require a ton of insulin but not cause a big blood glucose rise because it digests more slowly. We can also calculate the insulin response to food using the protein, fibre and carb properties of the food whereas the GI has to be tested in vivo and hence we only have a limited number of foods available.
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