A Trace Element Your Body Needs A trace element that's often overlooked, boron is believed to play a role in the metabolism of calcium and magnesium. While food sources include among others, apples, grapes, peanut butter and red kidney beans, boron can be difficult to get from your diet. Our high quality Super Boron Complex is easliy absorbed into the body due to a unique combination of three forms of boron: boron citrate, boron aspartate, and boron glycinate. Together, these three work to help support bone and prostate health as well.