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.

Healthy fats are essential—but doctors flag potential side effects to keep in mind if you're taking them in supplement form.

Research reveals most Americans don't know the risks: here, experts list some vitamins, supplements, and medications not to take together. The post 12 Supplement and Medication Combos You Should Never ...

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

Based on extensive research, there is insufficient scientific evidence to support taking an omega-3 supplement daily to ...

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

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

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