they started adding zinc to pennies in 1864.
when did they start adding zinc to pennies?
1864
na
na
bullet::::- adding zinc rich foods to diet. the foods with the highest concentration of zinc are proteins, especially animal meats, the highest being oysters. per ounce, beef, pork, and lamb contain more zinc than fish. the dark meat of a chicken has more zinc than the light meat. other good sources of zinc are nuts, whole grains, legumes, and yeast. although whole grains and cereals are high in zinc, they also contain chelating phytates which bind zinc and reduce its bioavailability.
zinc deficiency