Which of the following vitamins does not act as an antioxidant?
A) Vitamin E
B) Vitamin C
C) Folate
D) Beta-carotene
Question 2
What vitamin is produced from the amino acid tryptophan and can increase HDL-cholesterol?
A) Thiamin
B) Vitamin B12
C) Niacin
D) Vitamin A
E) a, b