Picture this: You’re reaching for your keys, and one nail snags on fabric—another split. Or you’re typing away, and a nail edge peels like old paint. It happens more often than you’d like, leaving your hands looking rough and your confidence a little dented. If your nails keep splitting, cracking, or breaking easily, you’re not alone. Many people notice this as they age, but it’s often a signal from your body about something deeper.
Nails are more than just a beauty feature—they’re a window into your overall health. Made mostly of keratin, a tough protein, they can reveal clues about nutrition, habits, and even hidden conditions. But before you panic, know that most cases are manageable. What if these fragile nails are your body’s gentle nudge to make small changes? Let’s explore the common reasons and how you can support stronger, healthier nails.
Why Do Nails Become Brittle and Prone to Splitting?
Brittle nails, medically known as onychoschizia, affect up to 20% of people, especially women over 50. They split horizontally at the tips, peel in layers, or break easily. The good news? Many causes are everyday factors rather than serious issues.
Everyday Habits That Weaken Nails
Frequent handwashing strips away natural oils, leaving nails dry and fragile. Think about how often your hands meet water—dishes, laundry, or sanitizing. Cold, dry weather worsens this, as does exposure to harsh chemicals in cleaners or nail polish removers.
You might think, “I wear gloves sometimes.” But repeated wetting and drying cycles are tough on nails, causing them to lose moisture and become brittle.
Aging and Lifestyle Factors
As we get older, nails grow slower and lose flexibility. Longer nails or frequent manicures with gels and extensions can add stress. Have you noticed your nails feel thinner or more ridged lately? That’s common with age.
But could there be more to it? Let’s look at nutritional links next.
Nutritional Clues Hidden in Your Nails
Your nails need specific nutrients to stay strong. Deficiencies can show up as brittleness or splitting.
Iron and Anemia
Low iron often leads to brittle, spoon-shaped nails. Studies link iron deficiency to fragile nails, especially in women. If you feel tired alongside this, it could be connected.
Biotin and B Vitamins
Biotin (vitamin B7) supports keratin production. Some research suggests supplements may help brittle nails, though results vary.
