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Function Of Various Nutrients In Our Body

The purpose of various nutrients:

Carbohydrates are ‘energy-rich’ foods as they provide energy in the form of glucose to our body. Comparatively, fats provide more energy to our body. Our body uses up fat as an energy source during observation of carbohydrate-restricted diet or fast. Too much of fat is harmful to our body, as it may cause a condition called ‘obesity’. Protein-rich foods are generally called as ‘building blocks’ of our body as they contribute towards the building of muscles in our body. Vitamins, though present in smaller quantities, help in protecting our body from various diseases. There are different kinds of vitamins namely, Vitamin A, D, E, K, B-complex and C. The various kind of vitamins, its source, deficiency, and symptoms are listed in Table 2.1

Table 2.1 Vitamins, their source, function, and deficiency







Protects our eyes and vision, promotes skeletal growth, promotes healthy skin and hair Carrots, green leafy vegetables, milk and dairy products, liver, meat Loss of Vision Poor vision during night


Essential for skin promotes immunity, stops internal bleeding, strengthens blood vessels of our body Citrus fruits like lemons, oranges, berries vegetables, potatoes and cauliflower     Scurvy Bleeding gums, longer time for wounds to heal


Promotes bone and tooth development, essential for absorption of calcium in our body and maintains nervous system Fish liver cod oil, eggs, fish, and mushrooms Rickets Softening of bones

B-complex (B1, B-2, B-3, B-6 and B-12)

Promotes muscle development, aids in digestion, essential for formation of red blood cells Whole wheat, wheat bran, wheat germ, oatmeal, peanuts, liver, meat and dairy products Deficiency of vitamin B1 - Beri Beri

Vitamin B-3 – Pellagra

Insomnia, poor nervous system, anemia, high blood pressure and dermatitis

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