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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 hairCarrots, green leafy vegetables, milk and dairy products, liver, meatLoss of VisionPoor vision during night


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


Promotes bone and tooth development, essential for absorption of calcium in our body and maintains nervous systemFish liver cod oil, eggs, fish, and mushroomsRicketsSoftening 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 cellsWhole wheat, wheat bran, wheat germ, oatmeal, peanuts, liver, meat and dairy productsDeficiency of vitamin B1 - Beri Beri

Vitamin B-3 – Pellagra

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

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