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通过对87名3－5岁儿童尺骨远1／3处骨矿含量、骨密度及头发中钙、磷、锌、镁、铜等元素含量的测定，发现骨矿含量与发中元素水平无显著相关；骨密度与发中锌含量呈负相关，与钙、镁、磷有负相关趋势，与发铜有正相关趋势。此结果提示发钙与体内钙营养状态无平行关系，不能简单地用发中元素含量评价体内矿物质的营养状态，否则可能得出完全相反的结论。
Bone mineral content, bone mineral density, and content of calcium, phosphorus, zinc, magnesium, copper and other elements in 87 children aged 3 to 5 years far from the ulna were measured and found that there was no significant difference The bone mineral density was negatively correlated with zinc content in the hair, negatively correlated with calcium, magnesium and phosphorus, and positively correlated with the hair copper content. This result suggests that there is no parallel relationship between dietary calcium and calcium nutrition status in vivo. Therefore, it is impossible to simply evaluate the nutritional status of minerals in the hair with the content of fat in the hair, otherwise the conclusion may be drawn completely.