What vitamins and minerals do you need to stay healthy? What foods and what portion do you need to consume to strengthen your immune system? We provide users with scientific knowledge about the recommended values and the upper limits of nutrients as well as optimal nutritional values that can be obtained from certain foods. With this application, users can learn the health benefits of nutrients for protection against diseases and viruses, and plan a diet and check if their diet is healthy with respect to nutrients (Vitamin B-12, Vitamin C, Zinc, Iron, etc.) and serving sizes using the optimal nutrient level.