The low-fat craze has ebbed somewhat in recent years as other nutrients -- primarily carbohydrates and, in particular, sugars -- have become the new villains of the diet scene. But many foods are still marketed with the claim that they are "fat free" or "low fat."
Do we know everything there is to know about how omega-6 fats affect our health? Of course not. But is the notion of an optimal ratio of omega-6 to omega-3 a myth with absolutely no data to support it? Hardly.