Boron? What on earth would you do with that? Is it used in some metabolic process somewhere?

edit: Ok, according to "Devirian, T.A. and Volpe, S.L., 2003. The physiological effects of dietary boron."

> Boron is known to influence a variety of metabolic actions. It interacts with calcium, vitamin D, and magnesium, which are all important in bone metabolism. Boron accumulates in bone in concentrations dependent on the amount of boron consumed. Boron has also been found to increase steroid hormone concentrations in postmenopausal women and to have antioxidant properties, which could make it beneficial in preventing atherosclerosis