Agreed. One has to cycle the fasting / exercising / rebuilding. Each trainer and nutritionist appear to have their own preferences to maximize this effect but

Agreed. One has to cycle the fasting / exercising / rebuilding. Each trainer and nutritionist appear to have their own preferences to maximize this effect but they also have many confounding treatments and are usually already quite healthy. I would suggest researching this more on the PubMed nih.gov site as they get into a little more details and usually have decent controls in place in some of the studies. Their search function is awful so I suggest using the following on google to get better results: site:nih.gov "search terms"