What is Nutrition of Health in life

What is Nutrition of Health in human life :– Nutrition may be defined as the science of food its relationship to health. It is concerned primary with the part played by nutrition in body growth development and maintenance.

The word nutrient for food factor is used for specific dietary constituents such as protein, vitamin, and Minerals. Dietetics is the practical application of the principle of Nutrition. It include the planning of meals for the well and the sick. Good nutrition means maintaining a nutritional status that enables us grow well and enjoy good health.

Protein, Carbohydrate and fat had been recognized early in the 19th Century as energy yielding food and much attention was the paid to their metabolism and contribution to energy requirement.


Nutrition is defined as the science of food and its relationship to health nutrition are specific dietary constituent such protein, vitamin, and Minerals.

Function of Food

  1. It provides energy for mechanical work
  2. It maintain growth repair and reproduction.

Classification of Food

What food does in the body does through the nutrient its contain. The body utilizes the nutrients to grow and keep healthy and strong. All nutrients needed by the body are available through foods.

Classification of food by origin

  • Foods of plant origin
  • Foods of animal origin

Classification of food by Chemicals

Classification of foods by predominant function

  • Energy Supplying food
  1. Cereal
  2. Sugar
  3. Roots
  4. Tubers
  5. Fat and oil
  • Body Building foods
  1. Foods
  2. Milks
  3. Meat
  4. Poultry
  5. Eggs
  6. Fish
  7. Pulses
  8. Groundnuts
  • Reparing and maintenance
  1. Vegetables
  2. Fruit
  3. Milk
  • Food by Sources
    1. Cereals and millet
    2. Legumes ( Pulses )
    3. Green Vegetables
    4. Fruit
    5. Meat fish, eggs, and milk
    6. Fat and oils
    7. Nuts and oil seeds
    8. Sugar and jiggery
    9. Condiments and species
    10. Others.