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 ...

How long it takes for vitamins and supplements to work depends on factors like the type of vitamin, your diet and hydration, ...

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