Know the 8 subtle signs of Vitamin A deficiency, from night vision issues to dry skin, and find simple ways to boost your intake naturally.

Vitamin D supplements are generally in your system after 4 to 12 weeks. Learn more about the importance of consistent supplementation to sustain results.

“Symptoms of a B-12 deficiency may not appear until B-12 levels are significantly low in the body,” said registered dietitian ...

Taking these supplements may do more harm than good for healthy aging.