Just for the record, I've been consuming between two and three pounds of butter a week for several decades. It's cheaper than coconut oil and also contains medium chain triglycerides. I also consume a low sugar diet. Were I to consume significant amounts of sugar, my liver would fill up with fat and my arteries would clog.
By the way, my body mass index is 20 and I'm 62 years old. We raised our kids on a high-fat/low sugar diet and they, in turn, are raising their children similarly. It's not low-carb, just sugar restricted.
I urge all who read this comment to listen to Dr. Robert Lustig's 89 minute presentation entitled "Sugar: The Bitter Truth." http://www.uctv.tv/search-details.aspx?showID=16717 You'll see that Dr. Turner's contention, that high saturated fat intake leads to fatty liver disease, is incorrect. It's fructose that the body can't handle well in large quantities.
Dairy fats actually promote thyroid health and lean muscle mass, no need to avoid them. Here's part of a student blog post I found on the American Society for Nutrition website at http://www.nutrition.org/asn-blog/2009/08/the-milk-debate/
"According to a cohort study of 12,829 US children aged 9 to 14 years, weight gain is associated with excess calorie intake and consumption of low fat or skim milk, but is not associated with drinking whole milk products. This finding although surprising is consistent with some animal findings. Pigs fed reduced-fat milk gain weight easily while pigs fed whole milk stay lean. Male rats fed whole milk had significantly lower concentrations of plasma triglycerides, very low-density lipoproteins and apolipoprotein B than rats fed low fat milk. The effects of whole milk on lipid profile and body composition are not well understood, but the process of removing fat from milk may in part be responsible for some of the observed effects.
Milk is an emulsion of butterfat globules and water-based fluid. Butterfat contains unique nutrients that support thyroid function and help the body develop muscle rather than fat..."