Searcher wrote:Orange, the strongest level of evidence about saturated fat vs unsaturated fat, and insulin resistance/glucose metabolism, comes from randomized controlled trials. All such trials known were included in a meta-analysis, which was cited above in this thread.
Yes I have read that study and the summary states
"The findings suggest exchanging dietary carbohydrate with saturated fat does not appreciably influence markers of blood glucose control."
"On the other hand, substituting carbohydrate and saturated fat with a diet rich in unsaturated fat, particularly polyunsaturated fat, was beneficial for the regulation of blood sugar."
This meta-analysis of randomised controlled feeding trials provides evidence that dietary macronutrients have diverse effects on glucose-insulin homeostasis. In comparison to carbohydrate, SFA, or MUFA, most consistent favourable effects were seen with PUFA, which was linked to improved glycaemia, insulin resistance, and insulin secretion capacity."
So hardly very conclusive there either in terms of sat fats causing problems, more about PUFAs improving things