ZMA Supplements contains zinc, magnesium aspartate and vitamin B6. The minerals in this formula can also be found in foods like spinach, nuts such as almonds or cashews, whole grain cereals, beans, oysters, poultry and red meat. Fish, fruit and potatoes are considered good sources of vitamin B6. This supplement’s formula contains zinc, magnesium aspartate and vitamin B6. Zinc is crucial for the synthesis of enzymes and hormones, as well as for the proper metabolization of macronutrients. The mineral helps fortify the immune system, preventing diseases from manifesting themselves or reducing the time required for the body to recover. By elevating the testosterone levels, zinc also contributes do increases in muscle mass and strength, which is of particular importance to athletes.