Substituting dietary saturated fat with polyunsaturated fat changes abdominal fat distribution and improves insulin sensitivity
For some reason I can't C&P the abstract.
They analyzed the results of 5 weeks on diets rich in sat fat vs. PUFA (described as spreads and oils, presumably high in omega 6 and probably some transfats :( ) on T2's, obese and non-obese subjects. The study size was small, but I think most readers will be as surprised as I was by the results.
All of the PUFA groups had less subcutaneous belly fat at the end of the 5 weeks. This was statistically significant in the non-diabetics, both obese and non-obese. Visceral fat either decreased or stayed the same. This was statistically significant for the diabetics, but not the non-diabetics.
The PUFA group seemed to eat less, but total body weight didn't change. Not sure what that's about. Could be underreporting or a slower metabolism? In any case, if this can reduce belly fat .....
Insulin sensitivity IMPROVED on the PUFA diet.
This goes counter to that n=1 "study" by the journalist that altered her diet to consume O6's that has been making the LC rounds lately.