Title: Encyclopedia of Bioavailability and Bioeqivalence- Nutrition and Its Importance

Biography:

Dr. Said poyan sadat has completed his MD at the age of 25 years from Ariana University of Medical . He is working as a HMIS Manager in Afghan Red Crescent Society. And also he has working as a medical doctor in a Hospital, part time 

Abstract

Introduction :

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.In hospitals, nutrition may refer to the food requirements of patients, including nutritional solutions delivered via an IV (intravenous) or IG (intra gastric) tube. Nutritional science studies how the body breaks food down (catabolism) and how it repairs and creates cells and tissue (anabolism). Catabolism and anabolism combined can also be referred to as metabolism. Nutritional science also examines how the body responds to food.                           

 Fast facts on nutrition: 

• The human body requires seven major types of nutrients.
• Not all nutrients provide energy but are still important, such as water and fiber.
• Micronutrients are important but required in smaller amounts.
• Vitamins are essential organic compounds that the human body cannot synthesize.