| The less carb you have in a meal, the higher the proportion of protein in it becomes. And protein uses insulin. This increases the I:C ratio as carbs are reduced. Lets take an extreme example. I will inject 4 units of Regular insulin to cover a meal consisting of a nice big steak and a salad (maybe 8 grams of carb). That is an I:C Ratio of 1:2, which is very high. If I were to eat a potatoe containing 40 grams of carb with the same meal, I would need another 4 units of insulin, reducing the I:C ratio to about 1:6. The big difference between these food types, of course, is that protein uses insulin over a much longer period than carbohydrate does.
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In my humble opinion  
Type1 since 1977
MDI using Lantus, Novorapid and Actrapid
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