Gizzard meat is also low in fat, and high in vitamins. Gizzard contains several vitamins including Vitamin B12, which is essential for brain function and forming white blood cells, niacin, which is good for circulation and producing hormones, and riboflavin, which keeps your skin and hair healthy. Consuming gizzards will lead to increased levels of iron, phosphorus, and zinc consumption. Iron helps your body form red blood cells, phosphorus, which benefits heart and muscle function, and zinc, which, improves immune system functions.