Hair Calcium (Ca) levels have been correlated with nutritional intake, several disease syndromes, and metabolic disorders. However, hair Calcium is sensitive to contamination by permanent solutions, dyes or bleaching. If hair has been treated, the reported Calcium level is likely to be artifactually high and not indicative of Calcium status or metabolism.
When external contamination is ruled out, elevated Calcium is most often interpreted as a maldistribution of Calcium. Rarely is elevated hair Calcium indicative of excess dietary Calcium. However, overzealous supplementation is possible. A high result for hair Calcium is more likely to be indicative of an inappropriately low ratio of dietary Calcium : phosphorus. Conditions associated with elevated hair Calcium include but are not limited to: hyperparathyroidism, osteoporosis, excess dietary Calcium or protein, excess vitamins A and/or D, phosphorus/magnesium/calcium imbalance (assessed by whole blood element analysis), hypoglycemia, hormonal imbalances, and metabolic disorders.
Hair analysis is not the preferred way to assess body Calcium stores. Calcium status should be assessed through: dietary analysis, whole blood or serum Calcium level, vitamin A and D levels, blood concentrations of other electrolytes (sodium, magnesium, potassium), parathyroid hormone determinations, and bone density measurement.
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