Water is an important constituent of diet. 75% of an infant body and 60% of an adult body is nothing but water. Various functions of water are:
- essential for the transport and digestion of food material.
- excretes wastes.
- maintains the body temperature.
- acts as solvent in various reactions in the body.
Sources of Water
Water is replenished by:
- drinking of plain water or of tea, coffee, milk and fruit juices.
- eating fruits, vegetables and fish.
- some amount of water comes as a by-product of oxidation of glucose in the body.
Roughage is the fibre present in some food items like fruits and vegetables. Though roughage is not a food, it forms an important part of our diet. Roughage consists mainly of cellulose.
- It helps in bowel movement.
- It cleans our digestive tracts and protects the body from digestive ailments.
- It prevents constipation.
- It helps in retaining water in the body.
- It helps in maintaining optimum levels of blood sugar and cholesterol.