Being low on vitamin D can increase your risk of high blood pressure and diabetes, says Michael Holick, M.D., endocrinologist ...

Vitamin A deficiency, often overlooked, silently affects millions, especially in developing nations, posing risks to eyesight ...

If you’re not a fan of fish, you can also try fish liver oil supplements for a concentrated dose of vitamin A. READ ALSO: 5 nutritious vegetables to boost eyesight READ ALSO: 7 foods that bring back ...

Iron deficiency can cause symptoms like dizziness, pale skin, brittle or spoon-shaped nails, hair loss, and even unusual cravings — like ice, dirt, or clay — which is a condition called pica.