How do you know if you have a vitamin D deficiency? Dr. Mims: "So it's a simple blood test ... "It's hard because it probably has some symptoms that overlap with lots of other things. However, it can ...

Severe iron deficiency can lead to pica, a condition where you want to eat things with no nutritional value. Both Peterson and Davis cite ice as a common craving. But people with pica might also crave ...

Symptoms of a vitamin C deficiency include weakness, bruising, and dry skin. Learn more about the warning signs and how to get more vitamin C in your diet.

Falling short on vitamin D isn’t something to brush off, either. Vitamin D deficiency has been linked to a slew of health ...

Vitamin E is an antioxidant that's essential for eye health. A deficiency can lead to vision loss over time.

Disappearing nail bed is a condition in which the nail bed shortens and narrows. It results from prolonged untreated onycholysis. Learn more here.