What is your concern about your mineral status, is it a general view to making sure it is ok? A doc will do blood and/or urine tests depending on what mineral is in question, based on observable symptoms that suggest a problem. As for hair tests, please read this as to what faith might be placed in them:
What's the best kind of testing for mineral deficiencies? is it better to get testing through a doctor -- like blood tests that only a doctor can order -- or is urine or hair testing accurate?
