While nail \u201cquizzes\u201d are just for fun, your nails can offer real, science-backed clues about your overall health, nutrition, and habits. Changes in color, texture, or shape often reflect what\u2019s happening inside your body\u2014sometimes long before other symptoms appear.<\/p>\n
Here\u2019s what to look for\u2014and when it matters:<\/p>\n
Common Nail Signs & What They May Mean
\n1. BRITTLE, PEELING, OR SPLITTING NAILS
\nLikely causes:
\nFrequent wet-dry cycles (washing dishes, sanitizing)
\nAging (nails naturally thin after 60)
\nNutrient gaps: Low iron, biotin (B7), or omega-3s<\/p>\n
What to do:
\nWear gloves for cleaning
\nMoisturize cuticles nightly with jojoba or almond oil
\nEat more eggs, salmon, nuts, and leafy greens<\/p>\n
2. VERTICAL RIDGES (RUNNING TOP TO BOTTOM)
\nUsually normal\u2014especially after age 50. Like wrinkles, they\u2019re often just a sign of aging.
\nConcern if: Ridges are sudden, deep, or paired with discoloration\u2014could signal nutrient deficiency or thyroid issues.<\/p>\n
3. WHITE SPOTS (LEUKONYCHIA)<\/p>\n
Continued on next page:<\/p>\n
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Myth: Not from calcium deficiency!
\nTruth: Usually from minor trauma (bumping your nail weeks earlier). Harmless and grow out.<\/p>\n
4. YELLOW NAILS
\nCommon cause: Nail polish staining (especially dark reds\/browns)
\nLess common: Fungal infection, psoriasis, or (rarely) lung\/thyroid conditions
\nTry: Take a 2-week polish break. If yellowing persists, see a doctor.<\/p>\n
5. SPOON-SHAPED NAILS (KOILONYCHIA)
\nNails curve upward like a spoon
\nStrongly linked to iron-deficiency anemia
\nAction: Ask your doctor for a ferritin (iron stores) test\u2014even if you don\u2019t feel \u201canemic\u201d<\/p>\n
6. CLUBBING (NAILS CURVE DOWNWARD, FINGERTIPS BULGE)
\nCan indicate: Low oxygen levels\u2014linked to heart, lung, or liver disease
\nNot normal: Requires medical evaluation<\/p>\n
7. DARK STRIPE (ESPECIALLY BROWN\/BLACK)<\/p>\n
Continued on next page:<\/p>\n
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<\/p>\n","protected":false},"excerpt":{"rendered":"
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