According to the doctors at the Iodine Conference in February, Iodine binds to heavy metals in the bowel and they get excreted over time. You could probably do both the cleanse and Iodine at the same time. Iodine might even enhance the effectiveness of the bowel cleanse.
With all respect to warthog, I would be afraid the sea veggies would put contaminants like heavy metals back into the system.