Vitamin B12 is typically well-tolerated, but in very rare cases, there are serious side effects to be aware of. Learn more about them here.

What happens if your body has too much vitamin B12? Read on to find out the dangerous side effects of having excessive levels of this nutrient in the body. TheHealthSite.com ...

Medically reviewed by Kristie Reed, PharmD Creatine is a popular supplement used to increase muscle size and strength. The ...

If you're considering a vitamin B12 supplement because of certain dietary restrictions, medical conditions or your age, this ...

While they may be beneficial on their own, taking these supplements together could hinder absorption or be outright unsafe.

Vitamin D and iron are two nutrients that many people in the U.S. don’t get enough of. One in four people in the U.S. don’t get enough vitamin D while 10 million people in the U.S. are deficient in ...

Medically reviewed by Leigh Weddle, PharmD Vitamin B12 and magnesium are essential nutrients for energy production, nervous ...

While prenatal vitamins help ensure you and your growing baby get the nutrition you need during pregnancy, they can cause some unpleasant side effects. "After all, pregnancy and nursing take a lot out ...

For many cancer patients, hair loss is one of the most distressing side effects of their therapy. Increasingly, they have been taking oral supplements of biotin, which are marketed to consumers for ...

“Practical advice would be: If you’re taking iron, do it at least one to two hours away from coffee. Vitamin C can help ...