Less Butter More Fat

While Americans eat closely the same proportion of carbs, protein, and fat as they did in 1889, there has been a dramatic increase in obesity in the past 50 years. Why? I choose to focus on the reduced butter consumption; however, it may be more complex.

Those smart people at Authority Nutrition have a more complete takeaway of Stephan Guyenet's TedxHarvardLaw talk, along with the talk on their website.