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.

Pills and gelatin capsules beside glass of water

How to Know If You Are Low on Vitamin B

Published Jul,12 2011 | By Stephanie Romo

Vitamin B complex includes vitamins B1, B2, B3, B5, B6, B7, B9, and B12. Each B vitamin has its own purpose in the body, and deficiency in any of the B vitamins can manifest as symptoms that range from barely noticeable to blindingly obvious.

Stephanie Romo has been a freelance writer since 2010. She writes about fitness, health and nutrition for several websites. Romo is an American Council of Exercise-certified personal trainer and has earned a Bachelor of Science degree in kinesiology with an emphasis in clinical exercise science from California State University, Fullerton. Romo currently is working on a second degree in nursing.