Your nails can do more than reflect a polish choice — they may be among the earliest visible indicators of what is happening inside your body. Changes in texture, color, or shape are documented signals that dermatologists and nutritionists use to assess overall health. Here is what the science says, and when a change is worth taking seriously.
En bref
- —White spots on nails are caused by minor trauma, not calcium deficiency
- —Brittle nails may signal low iron or biotin levels
- —Deep sudden ridges can point to thyroid issues
Brittle, peeling nails: when your diet or daily habits are the cause
Nails that split, peel, or break easily are one of the most common complaints — and one of the most misunderstood. The culprit is frequently external rather than internal: repeated wet-dry cycles from washing dishes, frequent hand sanitizing, or prolonged water exposure gradually strip nails of their natural moisture barrier.
