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.

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What Is the Normal Intramuscular Dose of Vitamin B12?

Your body needs vitamin B-12, also called cyanocobalamin, to produce DNA, RNA and red blood cells. If you cannot absorb enough vitamin B-12 from food, you may need to take an injectable supplement prescribed by your health care provider to treat or prevent anemia, nerve damage and cardiovascular complications.

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