I took this book along with Strong and lean of the same autor. I am using this book for about 5 months. The results of diet and workouts are amazing. The Body fuel helped me incredibly. Using the tips contained herein I improved my athleticism and health so much. I feel better in my 40-ties than when I was 20. Just follow the process and keep going. This book is gold. Mr Lauren is an Expert. I regret so much I haven't found it 10 years earlier and lost this time looking for another programs that werent working just as well as Body fuel.