I would not be surprised if it absorbs many metals, and other things as well, but it cannot take them out of body tissue. It can only keep the metals from getting absorbed into the body from the digestive system.

For this reason, as long as it is taken away from meals, I don't see why it would be a problem.

If it is taken close to a meal, then some of the nutrition from the meal won't get absorbed.

Does that make sense?