SUPPLEMENTS can help to keep us healthy. Vitamin A helps fight off infections, calcium is vital for bones and teeth, and fish oil supports the heart, lungs and blood vessels, for example. But ...

The popular vitamin with a sweet-like appearance could pose a huge health risk for kids if not taken correctly ...

A common vitamin often given to children could potentially lead to neurological irritability, nausea, vomiting, or abdominal ...

An increasingly popular vitamin with a candy-like appearance could pose a huge health risk for kids if not taken correctly ...

Around three-quarters of Americans take dietary supplements and vitamins every day to boost their overall health or correct an imbalance. But there can be too much of a good thing.

Darren Candow has taken creatine almost every day for over two decades. He says the supplement helps during intense workouts ...

Low levels of vitamin D are linked with increased inflammation and a higher risk of autoimmune conditions, Cassetty says.

CoQ10 is touted as a powerful supplement for improving heart health, fertility, and workout recovery, although more research ...

Vitamin B6 can also influence serotonin and dopamine levels, which can impact your sleep if taken too late, Keatley says.

Iron supplements are particularly infamous for causing constipation, nausea, and stomach pain. Vitamin C in high doses can lead to diarrhea and stomach cramps. If you’ve been dealing with digestive ...

That can cause certain vitamins to potentially hit toxic levels in the body and cause health issues, she says. While some side effects can be mild — abdominal cramps, nausea, diarrhea and ...