A mineral found throughout the body. Calcium is needed for healthy bones and teeth, for nerves and enzymes to function properly, and for blood clotting.

The form of folate (a B vitamin occurring naturally in food) that is manufactured and used in supplements and fortified foods.

In nutrition, a mineral the body needs to make red blood cells, proteins, and enzymes; and for the control of cell growth and cell specialization. Iron is found in some foods, including red meats, fish, poultry, lentils, and beans.

In nutrition, a mineral the body needs for normal muscles, nerves, and bones. It also helps keep a steady heart rhythm, a healthy immune system, normal blood sugar levels and blood pressure, and is involved in making energy and protein for the body. Magnesium is found in some foods, including green vegetables, beans and peas, nuts and seeds, and whole grains.

A group of chemical compounds that contain cobalt and are needed for certain chemical reactions in the body. Vitamin B12 is involved in maintaining healthy nerve cells and red blood cells. It is needed to make DNA (the genetic material in all cells), and is required for the metabolism (chemical changes that take place in the tissues to produce energy and the basic materials needed by the body) of carbohydrate, fat, and protein. Also called cobalamin.

Zinc is a mineral that is essential for many of the bodys normal functions and systems, including the immune system, wound healing, blood clotting, thyroid function, and the senses of taste and smell. Zinc also supports normal growth and development during pregnancy, childhood and adolescence.

These supplements may increase stomach acid and thus might interfere with antacids, H2 antagonists, and proton pump inhibitors.

Tagamet® (cimetidine) can inhibit the metabolism of caffeine in green tea and reduce its clearance