Quote:

you eat only things the cave men had to eat.

Problem with that is most of the things THEY ate, would eat them first if they could ;)

I do best on the complex carb/lean protein, Mediterranean type diet.
I know others that eat and do well the way SD talks about.

I don't think one diet lifestyle fits all. Are bodies are so complex and even though some rules may be universal, your individual body chemistry has a lot to with it as well.
The main thing is not to ignore obvious physical signs that your choice might not be right for you, or doing what you think it is.

Anyone who has serious weight to lose and is embarking on a strenuous fitness regime or new dietary regiment would be well served having a doctor check you out on the exercise part, and a REGISTERED dietitian check your diet. I'd avoid so called " Nutritionist". In most states they don't need to be certified/license and many are self-taught. Nothing the matter with being self educated, but often times they like un-certified personal trainers, only know what worked for THEM. That may or may not work for you, and the results could be a failure to lose weight or getting injured doing workouts that you have no business doing. And NEVER let anyone but a Licensed Dietitian or Medical doctor talk you into taking supplements to bulk you up, or help you lose weight.

Supplements are unregulated by the FDA. They, like Herbal Products can/have killed people when prescribed by people who have no knowledge about what the harmful side effect can be. Herbal Products are wonderful if used as directed and under the direction of people who understand that Natural or not, they're medicine and should be viewed as such.