The burning sensation in the feet or tongue indicates a possible vitamin B-12 deficiency; it is sometimes accompanied by imbalance, dry skin, or even cognitive changes. Vitamin B or iron deficiencies ...

Read the latest research on the importance of vitamin D for health, symptoms of vitamin D deficiency, suggested dosages and more.

Canker sores are painful ulcers that occur in the mouth, including on gums. Here's a look at how to deal with them.

Low levels of vitamin B12 can cause problems with your nervous system and blood cell production A simple Vitamin B12 blood test can tell you whether your levels are low.

These things can lead to serious deficiencies in some essential vitamins and minerals you need to stay healthy, including iron, calcium, vitamin B12, folic acid, and vitamin D.

Cod liver oil is rich in important nutrients, but the supplements have potential risks. Experts discuss the benefits, side effects, and dosage.

Ulcerative colitis can affect more than just your gastrointestinal tract — it can affect your skin, too. Learn about symptoms and treatments for better skin health.