[scottLobster]

Yeah that would be the difference. I'm not really technically "keto" at this point given my cheat days, right now I'm doing a 16/8 daily fast, but my typical diet is about 2/3 fruits and vegetables 1/3 meat, and I've never felt better. By contrast I once tried eating something like 90% meat for weeks and also felt like crap (although I did lose weight). The lack of fiber was particularly palpable. :P

My personal theory is a lot of prescribed keto diets have lax regulations on meat, so everyone who goes for them immediately maxes out the tastiest item available. The meat, assuming it's high quality/minimally processed isn't a problem directly, but eating more meat means you're eating fewer vegetables/fruit/nuts to balance things out.

I'd still say meat is more than a luxury in moderate doses. Zinc/B-Vitamins/Omega-3s and a lot of other good stuff is very hard to find naturally in non-meat form, and given the lack of regulation in the supplement industry I'd rather get such things through food.