If taking niacin, also take a Vitamin B complex.
B-vitamins - Take 50 to 75mg of B-complex before you go to sleep, or as soon as you wake up.
Supplementing with Vitamin C and B-complex vitamins may also provide support.
The resulting nutritional yeast contains a rich mix of 18 essential amino acids, 15 minerals, B complex vitamins, and especially, vitamin B 12.
Vitamin B is broken down into eight different vitamins, and are referred to as the B-complex vitamins.