Saturated fats are necessary. Your brain is made of saturated fat. You need saturated fat to maintain brain health, as well as omega 3s in a correct ratio with omega 6s. Not 1:1000+ like is typical with processed vegetable oils. The best sources of these are grass fed/pastured animal meat and wild-caught fish. There's racial differences in how plant precursors such as flax are processed, as well. Most people from northern climate lack the enzymes to convert vegetable precursors of omega 3 efficiently to omega 3. Just like those same people have increased enzymes to break down lactose. Humans are not all the same biologically. We have different metabolisms and different enzyme production. Most of the equatorial population can do fine on a diet of mostly plants, but northerners (white people) need meat. We evolved over thousands of years to require it.  Be vegan if you prioritize animal suffering over your own health and suffering, but do NOT tell me to stop because I WILL NOT suffer for your fake morality