The goal of this book is to share the experience that I have learned in University and life. In fact, I think it is possible to prevent, reverse or stop long term psychological or physical illness such as cancer, diabetes, Alzheimer, depression, and roots of stress. It is our responsibility to take care of our immune system, to evolve among science and decide for ourselves rather than following publicity on what benefits huge corporations but not to your health. It involves getting the right source and amounts of proteins, calories, vitamins, minerals, etc. Lots of people are poisoning themselves with wrong source of food; that's why they cannot sleep, study or work because it leads to cancers and stress. In the past decade the number of people seeking treatment for depression in the world has increased. Most patients left the doctor's office with many prescription for antidepressants, some children and adolescents are developing clinical depression. In the next decade stress will be the most health problem in the world. Finally, the choice is not to be vegetarian or non-vegetarian, but to be mindful that there are plenty of healthy stuff and to take advantage depends just on you.