Supplements Guide: Side Effects & Best Multivitamins

Vitamins and supplements like melatonin and fish oil offer health benefits but can cause side effects if misused. Learn about the impact of saw palmetto on blood pressure and find the best multivitamins for young women and adults over 50.

Vitamin B 50 Complex Side Effects

Published Jul,08 2011 | By Christian Walker, Ph.D.

B-50 complex vitamins contain different B-vitamins. Depending on the particular complex they generally are composed of 50 mcg or 50 mg of B-1, B-2, B-3, B-5, B-6, B-7, B-9 and B-12, according to the American Cancer Society, or ACS.