This book reviews how food is processed by our body. It uses simple language to explain the chemistry of food and how our bodies use different nutrients like carbohydrates, fats, proteins, and mineral salts to keep us healthy. The author compares processes of digesting cooked and uncooked food and drives analogies with the animal world on what chemistry does the body use to digest raw food. He explains what nutrients will are most important for human body at every age and offers a diet based on the age criteria. Additionally, in this book you can find different tips for cooking healthy meals, recipes and explanation on how to consume and choose different products according to the time of the day.