Thre are two things that chelate heavy metals easily - alginates and pectates. Women in our family have used Certo, (which is a liquid pectin sold in grocery stores and used to make jam and jelly), to cure Arthritis pain and stiffness. One tablespoon in 8 ounces orange juice, or grape, or whatever, 1-3 times a day. Takes 5-7 days to free up the stiffness and keep the pain away for a few months. They did not have healthy lifestyles, overall, but they got this one right. And cheap, too.
The following link talks about how a drug user detoxed with it before a drug test.