A balanced diet is that which contains different foods in the right proportions and amounts so that all the nutrients are provided in required quantities. Vegetarians should take larger amounts of pulses compared to non-vegetarians. Energy provided by food is used for working. This energy is measured in calories. The number of calories required by a person will vary with age, sex and activity.
Men require more calories and, hence, more food than women.
Pregnant and nursing women and growing children also need more food. Always cook vegetables when they are fresh, unless they have been stored in a refrigerator. Vegetables should be washed well before cooking. They must not be soaked in water for too long. This may cause the minerals and vitamins to get dissolved in the water.