Hi
If you want to take the guesswork out of your supplements and remove all toxic metals and chemicals poisoning your body I would recommend doing a hair mineral analysis and getting on a Nutritional Balancing program. It will provide you with the right foods & minerals to take according to your hair analysis results. It will also give you simple do at home detox techniques to safely and naturally remove mercury as well as other harmful toxic metals.
This is the most complete program I have seen anywhere and when followed properly gives real lasting results.
You can find out more here: http://www.healingaia.com/nutrition/what-is-nutritional-balancing.php