The Macro and Micro minerals listed here are considered essential. Calcium is maintained in a very narrow limit within the body. Phosphorus is essential for every living cell. Phosphorus has more functions than any other single nutrient. Potassium is the third most abundant mineral in the body.
Sulfur is important for many molecules, such as sulfur containing amino acids and vitamins.
Iron is a component of every living organism. Iron is generally poorly absorbed with animal sources being absorbed better than plant sources. Copper is required in cellular respiration, bone formation and cardiac function. Molybdenum is a component of several enzyme systems. Cobalt is an important component of Vitamin B12.