Oysters have a high amount of zinc, which is also found in abundance in foods such as beef, lamb, chicken, beans, nuts, whole grains, and pumpkin and sunflower seeds. Although a person should get zinc through the foods he eats, dietary supplements serve as an alternative source.
Zinc is an important mineral in terms of biological functions of the human body. Every cell of the body uses it in some manner. Healthy prostate gland function and the normal and healthy growth of the reproductive organs requires an adequate amount of zinc. Keeping a healthy level of zinc in the body plays a key role in maintaining a healthy immune system. Clinical studies have shown that ingesting zinc along with antioxidants may delay the progression of macular degeneration, a disease of the eye.
Not getting enough zinc can lead to many health problems, which include chronic and potentially life-threatening diseases such as liver disease, renal failure, diabetes, sickle cell disease and malignant tumors.
While a zinc deficiency poses serious problems, a person can also get too much zinc in his diet. An excess of zinc in the body can suppress the body's natural ability to absorb copper and iron, both of which are also necessary minerals found in foods.