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.

New research suggests that Omega-3 supplements such as fish oil or flaxseed may increase a person's risk of stroke or atrial fibrillation.

Supplements can support your health—but some carry serious risks. Reviewed by Dietitian Maria Laura Haddad-Garcia Supplements can cause heart, liver, kidney and digestive side effects. "Natural" doesn ...

GABA is a neurotransmitter that reduces brain activity, but it's also a supplement that could help with sleep.

People who take a common supplement should lower their dose if they experience any one of four symptoms. If taken in excess, ...

Pre-workout' is primarily made up of ingredients like caffeine and creatine, as well as amino acids, nitric oxide agents and ...

“Taking more than the recommended amount of fat-soluble vitamins like vitamins A, D, E, and K can cause them to build up in ...

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

Takeaways Biotin supplements promoted for hair and nail growth may interfere with lab results for cancer patients, potentially affecting treatment. Instead of using biotin supplements, dermatologist ...

Creatine is a popular supplement used to increase muscle size and strength. There are a few medications and supplements you ...

It could be your best shot at a productive day. Coffee offers a bevy of health perks, from boosting brain function and ...