Explain Basic Concepts of Nutrition Science?

Food is the very basis of our life, the food we eat, though the process of digestion, we know, is converted into nutrients, and these nutrients are absorbed, transported to different parts of the body, and utilized for the clay-to-day functioning, at the end of which they are disposed of by further metabolism and transformation into the end products. We need to consume a variety of foods in order to remain healthy. A simple thumb rule is to classify foods into different food groups. The basic seven-food groups concept is useful in getting a balanced diet that helps us to remain healthy.