This book is a practical guide for anyone who wants to recover from chronic illnesses and live a long, healthy and fulfilling life using a rational approach to nutrition and without putting extra strain on their wallet. You will receive detailed information on all aspects of proper nutrition and food choice , simple and accessible recommendations for those who want to lose weight or, conversely, gain weight. Learn how pregnant women and older people should eat. Let's talk separately about therapeutic fasting and traditional Christian fasts. Special diets are given for various pathological conditions and diseases of the digestive system, cardiovascular system, kidneys, diabetes, skin problems... All diets are supplemented with daily menus from the most affordable products, and even recipes are given dishes with which you can “deliciously” break your diet! The book is addressed to gastroenterologists, therapists, nutritionists and nutritionists, balneologists and, of course, everyone who values their health.