HUMAN NUTRITION

NUTRITION

ESSENTIAL NUTRIENTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This vitamin can be made in the body with sunlight and cholesterol
A
Vitamin D
B
Vitamin B
C
Riboflavin
D
Niacin
Explanation: 

Detailed explanation-1: -Vitamin D is the sunshine vitamin that has been produced on this earth for more than 500 million years. During exposure to sunlight 7-dehydrocholesterol in the skin absorbs UV B radiation and is converted to previtamin D3 which in turn isomerizes into vitamin D3.

Detailed explanation-2: -The production of vitamin D3 from 7-dehydrocholesterol in the epidermis. Sunlight (the ultraviolet B component) breaks the B ring of the cholesterol structure to form pre-D3. Pre-D3 then undergoes a thermal induced rearrangement to form D3.

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