Diet and Nutrition

Nutrition, nourishment, or aliment, is the supply of materials - food - required by organisms and cells to stay alive. In science and human medicine, nutrition is the science or practice of consuming and utilizing foods. Every person’s needs are different. The amount of food you need depends on your age, height, weight, and sport or activity level. In general, you need to replace the number of calories you burn each day. Calories measure the energy you get from food. Most people need between 1,500 and 2,000 calories a day. For athletes, this number can increase by 500 to 1,000 more calories. The diet of an organism is what it eats, which is largely determined by the availability, processing and palatability of foods. A healthy diet includes preparation of food and storage methods that preserve nutrients from oxidation, heat or leaching, and that reduce risk of food-born.

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