A.Reports suggest that the minerals calcium, iron and magnesium may help eliminate and/or combat lead poisoning. For years, my favorite supplement used in cases like this is Extox by Progressive Labs. One caution: it does contain garlic powder and garlic is considered toxic to cats. I have personally used this product on cats, with precautionary qualification, and saw no observable problems over the long term. I have also given garlic to my own cats for many years – I routinely cooked it into my one’s cat’s food and he lived to be 24. But I’m not recommending it. The product contains other ingredients that have heavy metal binding properties, including vitamin C, bentonite, l-lysine, chlorophyll, dl-methionine and sodium alginate. You could use several or all of these.