500
This number of vitamins plus the dietary component, choline, are considered dietary essentials for humans.
a. 5
b. 13
c. 33
d. 253
What is
b. 13
8 B vitamins - thiamin,niacin,riboflavin,folate, pyridoxine,cobalamin, biotin, and pantohenic acid;
Vit C, A, D, E, and K