......The key to good health is balanced diet. Nutritious food and right eating habits is bound to pay returns in terms of better health. The diet that supplies the body with essential elements in the right proportion is a balanced diet. The diet should therefore consist of a variety of food that provides the right proportion of proteins, carbohydrates, fats, vitamins and minerals.

Keeping in mind the various requirements of body in different stages of life, we can form different groups.

• Infancy
• Childhood
• Adolescence
• Adulthood
• Oldage