With the current demographic development accompanied by the aging of the population, many older people will find in this book advice and recommendations regarding the appropriate composition of the diet and the simple preparation of meals. The minimum kitchen or kitchenette equipment for a one-person or two-person household is also described, with which high-quality, varied food can be prepared quickly and easily. The book briefly mentions theories and facts about aging, gives a brief overview of basic nutrients and sources where to find them. A moderate increase in protein intake and a simultaneous reduction in the intake of excess empty energy from fats and simple sugars (respecting the decline in basal energy expenditure with age) lead, together with adequate exercise, to maintaining health and vitality into old age. From this basic recommendation of experts, a practical application to everyday life develops. The recipe section contains dishes that the author has personally tried, many of which she has created, and which she demonstrates in diet cooking courses. Recipes are created in such a way that others can be derived from their basic version. The most dietary option is chosen, with preparation without fat and without thickening with flour or broth. The food can then be easily enriched with energy by adding fat or thickening it. The appendices contain brief tables of the content of some nutrients and energy in food, a table of energy expenditure of normal daily activities and moderate sports activities, including conversion to the recommended 30 minutes of exercise per day.