I've been trying to narrow down which supplements actually help me, and which are just a waste of money, and next on my list is Fish Oil. The fat in my diet, which is maybe ~60% of my calories, comes from beef, butter, occasionally milk, and rarely eggs. As a result I get plenty of SFAs and MUFAs, but very little PUFAs. Fish is high in PUFAs, so that would increase the amount of PUFAs in my diet, but the question is: Would I benefit from more PUFAs in my diet?
I found one study, which claims to replace SFA with PUFA, but in the results the only thing it mentions is PUFA intake, which seems largely useless. The only idea that can even be remotely supported by this study is that more fat helps prevent heart disease, which I already knew. Also, these are likely SAD people, who have very low fat intakes, along with excessive calorie and sugar intakes, making the results even less applicable to me.
This article is the best I could find. It says that total fat stayed the same, but PUFAs were increased. The study found no difference in cardiovascular related mortality rates or overall mortality rates. There was, however, a small reduction in non-lethal cardiovascular events. This study also has the same problem as most studies, they don't list the average total fat intake, BF% of participants, or carb in take, which are also factors in cardiovascular events.
Does anyone have any research comparing fat types in high fat diets? Any insight would be appreciated.