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 D & Magnesium Interaction

Published Jul,08 2011 | By Robert Iafelice

By now you may be aware of the critical importance of getting enough vitamin D, not just for your bones, but to help ward off killer diseases such as heart disease, diabetes and cancer.

Robert Iafelice, M.S., R.D., L.D., is an expert in nutrition and fitness and began writing professionally in 1987. He has written for magazines such as "Chicago Medicine" and has contributed to the handbook, "The Alkaline Way Guide." Iafelice is a consulting nutritionist for Revati Wellness, Silver Lake Wellness Center, and the Northeast Ohio Institute of Functional Medicine.