This document discusses calcium and zinc, including food sources and health benefits. It notes that calcium is found in dairy products like milk and yogurt, as well as foods like beans, tofu, and fortified cereals and juices. Zinc is best obtained from oysters but also found in red meat, seafood, nuts and whole grains. Calcium supports bone and tooth health while zinc boosts immune function and fertility. Not getting enough calcium can lead to brittle bones and teeth while zinc deficiency causes slowed growth and hair loss. Consuming less than 300mg of calcium daily may decrease its absorption when taken with zinc.