When it comes to omega-6 fats, the quick and dirty soundbite resonating throughout the ancestral health community has been “omega-6 fats are inflammatory, omega-3s are anti-inflammatory.” Years ago, I wrote a post saying essentially the same thing – that an excessive intake of omega-6s and inadequate intake of omega-3s predispose us to an exaggerated inflammatory response. This sounds right. And the huge discrepancy between the estimated ratio of omega-3 to omega-6 fats in ancestral human diets – 1:3, 1:2, or even 1:1 – and the ratio in modern diets – ranging from 1:25 to 1:10 – just looks pathological. Then, bringing up the rear, you’ve got Bill Lands’ work showing that human populations with low levels of omega-3s and higher levels of omega-6s in their tissues are at greater risk for many diseases like heart disease. It all seems clear cut, no?