I am so excited to find this diet and forum!! I lost a lot of weight several years ago, subconsciously doing something right along these lines. so a few questions:
1. Is dairy out of the diet?
2. Is it ok to bodybuild/weightlift while on the caveman diet?
3. are zero calorie vitamin supplements recommended or acceptable on the diet?
I am sorry of these questions are answered elsewhere!! I am totally stoked and ready to do this!
1. some do it other don't. You decide.
2. people do lots of interesting sports while on cavemen diet.
3. from a purely scientific and professional reasons I'm against food supplements in general but also in sports, if there is not a medical indication for taking them. The reason for this is that many are contaminated (malpractice in production or intentionally) with pharmaceutical substances which are banned in sports. Food supplements in general are a gray field of nutrition, many things can be sold as a vitamin.... but it can also be a designer steroid... because there isn't a functional governmental regulation of what a food supplement is.
I think that conventional bodybuilding (with the exception of natural bodybuilding) and power lifting are not subjected to doping control so there isn't a chance that you are 'caught'. Another thing is what you personally decide and how much and in what way do you want to win a competition. Eating a balanced diet, which cavemen is, should provide you with all necessary vitamins and minerals. Foods will also provide you with other substances, fibers, which will positively influence your digestion.
I'm adding the USA Anti-doping web page where you can learn more about food supplements/supplement safety and doping in generalhttp://www.usada.org/substances
and the Swiss anti-doping web page, where you can check if the substance is on the list of prohibited substances in sports (mostly because they are harmful to health)http://www.antidoping.ch/en/drugdb/
I hope this helps you in your sports career. Stay healthy.