Will consumption or oral contraceptives enhance the gastrointestinal absorption of lead

Consumption of a specific oral contraceptive (OC) preparation resulted in the enhanced gastrointestinal (GI) tract absorption of calcium. Since calcium and lead may compete for the same binding site in the GI mucosa and since lactose enhances the GI uptake of a variety of minerals such as calcium and lead, it is speculated that other agents such as certain OC preparations which facilitate the GI absorption of calcium may also enhance the GI uptake of lead.