According to a study, the mineral Zinc may have a great deal to do with inhibiting the growth of cancer cells in the esophagus. Zinc is responsible for the activity of more than 300 enzymes, immune function, and apoptosis (cell death). Findings were published in The Federation of American Societies for Experimental Biology. Research was done using “florescent live cell imaging”. It stated that Zinc can possibly halt the production of cancer cells especially in the esophagus. By hindering overacting calcium signals to cells, it may stop the growth of cancer by selectively inhibiting their growth. They also found that normal cells were left free to grow. Zinc deficiency seems to be common in patients with cancer. It is extremely important for overall health since it allows cells to function properly. However, taking a supplement without the guidance of your physician can be dangerous since it may hinder the absorption of other minerals. A good way to increase your intake is to include foods rich in Zinc in your diet. Spinach, flaxseed (milled), beef, pumpkin seeds, legumes, dairy, seafood (shrimp, oysters, fish), eggs, whole grains and even very dark chocolate.