DESCRIPTION: The deleterious effects of a Paleolithic diet appear to undermine the positive effects of a Crossfit-based high-intensity circuit training exercise program.

I touched on paleo diets before in Paleolithic Lessons (, and I featured a guest blog on the subject: Will The Real Paleo Diet Please Stand Up? (

I wrote a book on low carb diets (now available free full-text online and touched on it in Atkins Diet: Trouble Keeping It Up ( and Low Carb Diets and Coronary Blood Flow (

And if you’re thinking, yeah, but what about the size of the cholesterol, small and dense or large and fluffy? Please see my video Does Cholesterol Size Matter? (

Have a question for Dr. Greger about this video? Leave it in the comment section at and he’ll try to answer.