Signs such as dry skin, brittle nails or thinning hair can ... Thinning hair or hair loss is often associated with deficiencies in iron, zinc, or biotin (vitamin B7). Iron plays a crucial role ...

A split nail (onychoschizia) is a vertical or horizontal crack through the fingernail. The nail may also feel soft, thin, or brittle. Injury, harsh chemicals, psoriasis, nail fungus, or vitamin ...

Worried that the white spots under your nails could ... to do with a calcium deficiency. From the idea that eating carrots can help you see in the dark to the belief that cracking your knuckles ...