The science or study that deals with food and nourishment, especially in humans. The process of nourishing or being nourished, especially the process by which a living organism assimilates food and uses it for growth and for replacement of tissues.

Good nutrition can help prevent disease and promote health. There are six categories of nutrients that the body needs to acquire from food: protein, carbohydrates, fat, fibers, vitamins and minerals, and water.

1.PROTEINS:

Out of the many protein sources out there, whey protein is the ultimate. It comes from milk. During the process of turning milk into cheese, whey protein is separated out. Protein can be found in a variety of foods -mainly meats, such as fish, beef, and chicken.

Proteins play a major role in ensuring your health well being. There are innumerable functions of proteins in the body. Well, the primary functions of proteins include building and repairing of body tissues, regulation of body processes and formation of enzymes and hormones.

2.CARBOHYDRATES:

Carbohydrates are the main energy source for the human body. Chemically, carbohydrates are organic molecules in which carbon, hydrogen, and oxygen bond together in the ratio: Cx(H2O)y, where x and y are whole numbers that differ depending on the specific carbohydrate to which we are referring. Animals (including humans) break down carbohydrates during the process of metabolism to release energy. For example, the chemical metabolism .

3.FAT:

Fat is a component in food. Some foods, including most fruits and vegetables, have almost no fat. Other foods have plenty of fat. They include nuts, oils, butter, and meats like beef.

The name — fat — may make it sound like something you shouldn't eat. But fat is an important part of a healthy diet. And little kids, especially, need a certain amount of fat in their diets so the brain and nervous system develop correctly. That's why toddlers need to drink whole milk, which has more fat, and older kids can drink low-fat or skim milk.

4.FIBER:

Dietary Fibre is that part of food that is not digested by gut & is considered as unavailable carbohydrate. Soluble fibre is more effective in controlling blood sugar & serum lipids. Insoluble fibre prevents constipation and bowel cancer.

BENEFITS:

1. Reduces weight.
2. Reduces blood sugar and serum lipids.
3. Prevents several benign G I disorders and colon cancer.
4. Maintains normal G I functions and relieves constipation.
5. Provides satiety in the diet.
6. A good source of vitamins and minerals.

5.VITAMINS:

Vitamins are natural substances found in plants and animals and known as Essential nutrients for human beings. The name vitamin is obtained from "vital amines" as it was originally thought that these substances were all amines. Human body uses these substances to stay healthy and support its many functions. There are two types of vitamins: water-soluble and fat-soluble.

1. Vitamin A is referred to be a vitamin for growth and body repair. It is very vital in the formation of bone and tissues and also keeps your skin smooth. And if you are night blind, the cure is having more Vitamins A.
2. Vitamin B1 is an energy building vitamin which helps you to digest carbohydrates. It also keeps your heart and muscles stable.
3. Vitamin C is a very commonly pronounced vitamin world wide. From kids to veterans, this vitamin is very essential as it protects your bones, teeth and gums. The ultimate medicine for curing scurvy and also resists any infection to grow in your body. Without its support collagen cannot be synthesized in the body.
4. Vitamin D is very important for children. The common disease seen in kids suffering from malnutrition is Rickets, which is actually caused by the deficit of Vitamin D. Bones cannot grow in a normal way if there is a lack of this vitamin. Direct sunlight is a natural source of vitamins apart from spinach and vegetables. In adults, Osteoporosis is caused due to lack of Vitamin D.
5. Vitamin E is a wound treating vitamin. It is very mush essential to prevent sterility and to break up blood clots. Damage of cells due to aging can be protected to supplement of this vitamin.
6. Vitamin B6 is necessary for production of antibodies
7. Vitamin B12 is required for carbohydrate and fat metabolism. This is a must for children's growth.
8. Vitamin B2 and Folic Acid help in the formation of red blood cell.

6.WATER:

Water is the common name applied to the liquid form (state) of the hydrogen and oxygen compound H2O. Pure water is an odorless, tasteless, clear liquid. Water is one of nature's most important gifts to mankind. Essential to life, a person's survival depends on drinking water. Water is one of the most essential elements to good health -- it is necessary for the digestion and absorbtion of food; helps maintain proper muscle tone; supplies oxygen and nutrients to the cells; rids the body of wastes; and serves as a natural air conditioning system. Health officials emphasize the importance of drinking at least eight glasses of clean water each and every day to maintain good health.