While vitamin C is essential for health, high doses can cause serious side effects. Learn the risks and how to use it safely, ...

Taking vitamin supplements you might not need is not only pointless, but can be dangerous. If you're not deficient in a nutrient, your body can't use it as a supplement, registered nutritionist ...

Dietary supplements are products like vitamins, minerals, and herbs that claim to promote wellness. Many of these supplements do have known benefits, but there are also risks you should know about.

Taking too much vitamin D causes side effects like nausea, vomiting, weakness, and abdominal pain. The average adult should take no more than 4,000 international units of vitamin D daily. Vitamin D ...