Nail Care: Repair Brittle Nails and Toenail Fungus Cures

Brittle nails that crack and split are often linked to vitamin deficiencies or damage from acrylics. Learn how to kill toenail fungus, repair cuticles, and use the best vitamins to achieve long, strong, and fast-growing nails.

Brittle Nails & a Decreased Thyroid

Published Jul,18 2017 | By Linda Tarr Kent

Decreased thyroid production can lead to brittle nails. Women who are over 50 have the highest risk of developing thyroid problems. Hypothyroidism may not cause noticeable symptoms in its early stages, or symptoms might be subtle or easily blamed on another factor, the Mayo Clinic advises.