That is when there is greatest absorption of lead from their intestinal tracts. In experimental animal studies, if the animal is given lead and the dietary calcium is increased, lead absorption is decreased. Even if lead is given and absorbed and then the dietary calcium is increased, tissue levels of lead are decreased - probably because the calcium keeps the lead in bones where it cannot do much harm. Several studies in people have shown that there is an inverse relation between dietary calcium intake and blood lead levels - the higher the calcium intake, the lower the blood lead concentrations. A large percentage of children and adults in the United States do not get enough calcium in their diet.
Calcium provides other benefits.
It is needed to build strong bones. In older adults, an adequate calcium intake is helpful in preventing osteoporosis. It will start in Newark, the city with the greatest problem, and then be expanded to cover the entire State. Parents should be sure their young children get enough calcium in their diet.