I enjoyed the (very many) of scientific articles in support quotes, and critical look at some dietary supplements "miraculous". This does not prevent highlight, FOR CONTROLLED PROPORTIONS, supplements such as creatine, protein and amino acids.
This book is for mature people capable of understanding that a dietary supplement may be suggested in some cases and at certain doses and able to stick to the suggested amounts.
I stress because having practiced bodybuilding for a number of years, I saw many people take much more protein, creatine, etc. the maximum recommended dose. And it is very dangerous to health (digestive problems, liver, kidneys, etc.). What good play sports intensively if flinger to health?