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Water
Approximately 55 to 65% of the body weight of an adult man comprises of water. Loss of water from body is so critical for survival of human being, that one can survive even after loss of almost all glycogen as well as fat, and half of body’s protein, but cannot survive if more than 20 to 22% of water is lost. Water is used as a building material in every cell of the body. Being a universal solvent, it carries food into the body, helps digestion, absorption of food and ensures elimination of waste products from the body. Water also helps to maintain body temperature, acts as a lubricant in the mobile parts of the body such as joints and prevents friction. A one ml. water per calorie of food, has been recommended under ordinary conditions. This means, an intake of roughly 6 to 8 glasses (1.5 to 2 litres) of water per day.
Proteins
Food That Provide Proteins
Proteins provided by various foods are given below:
Foods |
Protein Content
(gm per 100 gm of food) |
Milk |
4 |
Skimmed milkpowder |
38 |
Cereals |
6–12 |
Cheese |
24 |
Meat/poultry/fish |
18–20 |
Soybean |
43 |
Pulses & legumes |
18–24 |
Nuts & oilseed |
18–25 |
Channa (Paneer) |
15 |