Vitamin D is essential for immunity, bones, and overall health but overdoing supplements can quietly lead to dangerous and even life-threatening complications.

While there are plenty of foods and some health conditions that cause constipation, certain supplements may also be to blame.

You can’t absorb all of the vitamin C, but can only urinate it out if you take too much of it, or if it builds up and isn’t being released properly, you can get into serious trouble with your health.

There’s growing awareness of rare, but potentially serious side effects from mega doses of vitamin B6, a nutrient found in ...

New guidance suggests that when you take vitamins may matter just as much as what you take, with experts cautioning that some supplements can be less effective—or even disruptive—when consumed first ...

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 ...

Q: How about a warning about the effect of too many vitamins? One example: B6. I recently checked my daily vitamin formula and found that it had more than twice the recommended B6. This is on top of ...

It might help your sleep, too.

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 ...

Vitamin C enjoys an almost mythical status in the wellness world. From fighting off colds to boosting collagen production, this essential nutrient plays crucial roles throughout the body. However, the ...

More than 1 in 8 American adults are using GLP-1’s for weight loss. Experts say these are the nutritional gaps and side effects that should not to be overlooked.

You can find combination supplements that include vitamin D and omega-3 fatty acids. "Because vitamin D is fat-soluble, taking it with omega-3s or other healthy fats can improve absorption," Planells ...