Do your nails often crack and split? Do they appear "dull" and brittle ... be a good indicator of your overall health. Often, deficiencies in certain nutrients can contribute to poor nail health ...

Vitamin deficiencies or fungal infections can ... American Osteopathic College of Dermatology. Brittle splitting nails. Chessa MA, Iorizzo M, Richert B, et al. Pathogenesis, clinical signs and ...

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 ...