Boron is a naturally occurring mineral found universally in soil in varying concentrations. And because it is in the soil it is therefore in the plants and in all the foods we eat that are soil related --- vegetables, fruit, wine, tea, coffee and so on. In the human body boron is known as a trace element. Or in other words, in tiny concentrations it is essential for health and proper bodily functioning. The precise role that boron plays in your body is not completely understood.