Diagnosis is typically made based on clinical suspicion and a low level of zinc in the blood. Any level below 70 mcg/dl (normal 70-120 mcg/dl)is considered as<unk> .<unk>  could be also associated with low alkaline phosphatase since it acts a cofactor for this enzyme. There is a paucity of adequate zinc biomarkers, and the most widely used indicator, plasma zinc, has poor sensitivity and specificity.
Zinc deficiency
Zinc toxicity
Manganese deficiency 
Boron deficiency 
Lead poisoning
Iron deficiency
Selenium deficiency
Copper deficiency