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

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

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

Taking too much vitamin B6 can cause nerve damage and numbness in hands and feet. Niacin at high doses can cause flushing and ...

Vitamin D is known as "sunshine vitamin", and serves two essential purposes for human health: bone development and immune system support. However, even in a tropical country like India, Vitamin D ...

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 ...

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 ...

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