if anyone is interested i ordered a heavy metals test from a company called osumex i was a bit doubtful about it because all you have to do is a urine sample and put a piece of ltmus paper into the test tube then after a couple of minutes you check the top ring of urine to see if it chages colour it gives a slip of paper like a colour chart well mine turned dark brown which indicates high toxicity apparently doctors in America accept the test i thought it worked really well and was only about fourteen pounds