Several studies have shown that raw crushed or chopped garlic (cooked kills the beneficial elements) removes heavy metals from the body. It's too simple and too inexpensive and doesn't carry a patent so it is often ignored.
Simply having a cup of tea and eating more garlic could limit damage
Tannin-containing herbs like green or black tea can bind to heavy metals and prevent your digestive tract from absorbing them. For full effect, these herbs need to be taken with each meal.
Garlic may also prove helpful. About 30 years ago, a Bulgarian scientist named Petkov assessed the value of garlic by workers in a lead smelter. Tests showed that the number of workers already exhibiting signs of early lead toxicity fell by 83 per cent after just one to three months of taking a garlic supplement (J Ethnopharmacol 1986; 15: 121-132).
In an animal study, researchers found that when garlic was given to rats in conjunction with cadmium and organic mercury compounds, it protected against heavy metal accumulation in various organs, probably by inhibiting their absorption. It was even more effective than drugs, such as penicillamine, which are used to treat heavy metal poisoning (J Korean Med Sci 1987; 2(4): 213-224).