Discussion
Which among the following nutrient is also known as Body building food?
Answer: A
Proteins are called the body building foods because they supply the amino acids that the body needs for growth and for the repair of tissues, muscle and cells. Carbohydrates and fats are energy giving foods, so they do not build the body in this sense, and an option that combines carbohydrates and fats is also an energy group. Sources of protein are pulses, milk, eggs and meat. The answer is protein, option A.
Carbohydrates and proteins give about 4 kcal per gram and fats about 9 kcal, but only proteins are used mainly to build enzymes, hormones and tissue.
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