Vitamin nicotinamide can be synthesized in our body from
A
Tyrosine
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B
Tryptophan
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C
Valine
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D
Phenylalanine
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Solution
The correct option is A Tryptophan Tryptophan is an amino acid. Nicotinamide is a vitamin. Nicotinamaide can be synthesized in the human body from tryptophan. However, the efficiency of this synthesis is very low. It occurs in two forms, coenzymes NAD and NADP.