What Those Vertical Ridges on Your Fingernails Might Be Telling You — Especially After 40

without gloves can make this dryness worse over time.

3. Nutrient Deficiencies

Another common factor is lack of essential vitamins and minerals, especially:

• Biotin (Vitamin B7)
• Iron
• Zinc
• Magnesium

As we age, our bodies don’t absorb nutrients as efficiently. That means even if you’re eating well, you might still fall short in certain areas — and your nails continue reading …