Vitamins are specific organic compounds that are required in the diet to 1. aid in digestion of proteins. 2. provide fiber. 3. provide essential amino acids. 4. prevent deficiency diseases.

The correct answer is 4. prevent deficiency diseases.

Explanation:

Vitamins are important in the body and it helps in boosting our immune system, helping our wounds to heal fast. They are required in a small amount in the body for maintaining normal metabolism of the body.

Vitamins helps in preventing deficiency disease like vitamin deficiency anemia. Vitamin D deficiency can cause rickets, vitamin C deficiency can cause scurvy, deficiency of vitamin A can cause vision loss.  

Therefore a proper balanced diet should be taken which has all essential vitamins to prevent us from deficiency diseases.

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