No essential functions are known from Strontium. This element, based on its phys.- chem. similarity to calcium, is built in the bones instead of calcium, especially in the case of lack of calcium.
The hair strontium test confirms first of all the calcium values. Elevated Strontium values point to a calcium disorder. In this case calcium intake is recommended.
ORTHO-Analytic AG - http://www.orthoanalytic.ch - Switzerland (Hair analysis)