Now what is the average caloric expenditure for the "average American" over the same period? I bet that in addition to the average caloric consumption going up 800/day, the average caloric expenditure went down due to a lot less people working in physical jobs now compared to 50 years ago...

It seems calories-in/calories-out would be a much simpler explanation for the "obesity epidemic" compared to eating high/low fat high/low carbs etc. etc.

thanks for the tip, I didn't realize you could upvote your own vids