What causes vertical cracks in fingernails?
Accordingly, what are you lacking when your nails split?
Iron deficiency is one of the most common nutritional deficiency causes of cracked nails. The body also requires proteins and B vitamins to effectively build strong, healthy nails.
Likewise, what do Beau's lines in nails look like? Beau's lines. Beau's lines are deep grooved lines that run from side to side on the fingernail or the toenail. They may look like indentations or ridges in the nail plate.
Similarly one may ask, what vitamin deficiency causes vertical lines in fingernails?
Iron deficiency anemia
Why do nails split down the middle?
Onychoschizia, commonly known as nail splitting but also known as onychoschisis or lamellar dystrophy, is a condition that causes horizontal splits within the nail plate. Brittle nails may occur due to medical problems, including gland (endocrine system) diseases, tuberculosis, Sjögren syndrome, and malnutrition.