There is an evolutionary explanation that might account for the fact that high fat diets induce insulin resistance. One is straight forward: adaptation to a high fat diet must have been a temporary thing as no diet composition was really predictable during ancient times. A high fat diet would have meant that protein and fat were abundant relative to carbohydrate. Hence, muscle and organs would become a bit resistant to insulin in order to spare it for the nervous system. This adaptation would be entirely transitory until the next change in the composition of the diet from seasonal change or animal migration or changes in the available composition of plants. With the abundance of fat now available, this transitory adaptation tends to become almost permanent. Perhaps Paleo eaters who consume a lot of fat and add palm oil to their diet have higher basal insulin levels and are more insulin resistant, say, than somone such as myself who consumes a more moderate amount of fat. That is just a hypothesis, not something I know to be true.
Posted on: Fri, 04 Oct 2013 19:36:28 +0000
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