Question

Which of the following statements about vitamins is true?
A) Vitamins have a small caloric value B) Vitamins can serve as an energy supply for the body if certain criteria are met C) Like protein and some minerals, vitamins contribute to the structure of the body D) Vitamins are indispensable for the maintenance of optimal health

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.

Answer 2

D)

is the answer

i belive