Iron is essential for producing hemoglobin, which delivers oxygen to cells throughout the body—including those responsible for nail growth. Low iron levels can lead to brittle, fragile, or unusually shaped nails.
Iron-rich foods to consider:
Spinach and other leafy greens
Red meat
Lentils and beans
Fortified cereals
If iron deficiency is suspected, it’s important to consult a healthcare professional before taking supplements.
Insufficient Protein Intake
Because nails are composed of keratin, inadequate protein intake can weaken their structure, slow growth, and increase breakage.
Good sources of protein include:
Lean meats and poultry
Fish
Eggs
Dairy products
Legumes
Adequate protein supports not only nail strength but also muscle health, immunity, and tissue repair.
2. Dehydration and Brittle Nails
Dehydration doesn’t just affect your skin—it can also make your nails dry, brittle, and more likely to split or peel.
Drinking enough water throughout the day helps maintain nail flexibility and supports healthy growth from the nail bed. If your nails feel dry or crack easily, increasing your daily water intake may be one of the simplest and most effective solutions.
3. Environmental Factors That Weaken Nails
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