Question

vitamins ____________ synthesized by the body .​

Answer 1

Answer:

Humans are able to synthesize certain vitamins to some extent. For example, vitamin D is produced when the skin is exposed to sunlight; niacin can be synthesized from the amino acid tryptophan; and vitamin K and biotin are synthesized by bacteria living in the gut.

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Answer 2

Explanation:

There are many vitamins such as vitamin D ,A, B etc