Boron is a little-studied mineral found naturally in fresh fruits and vegetables.

Boron helps retain calcium in bones and prevents calcium and magnesium loss through the urine. It also helps bone mineralization and prevents osteoporosis. Epidemiological data implies that boron may help to prevent arthritis. There is evidence to suggest that boron is involved in estrogen and testosterone metabolism .In postmenopausal women it increases estrogen naturally. Several studies carried out over recent years have led the United States Department of Agriculture (USDA) to conclude that boron is an important nutrient for brain and psychological function in humans.

None are officially recognized, yet some studies have linked boron deficiency to hyperthyroidism.

1-3mg daily combined with calcium, magnesium, and all other minerals. No RDA has been established, however data obtained in animal studies suggests that humans probably require roughly 1 mg of boron a day. Thus, people who eat plenty of fruits, vegetables, nuts, and legumes, are unlikely to require supplementary boron.

MAXIMUM SAFE LEVEL: Not established

One study found that 2.5 mg of boron per day for two months, worsened hot flashes and night sweats worsened in 50% of participants. Thus, women who suffer from such menopausal symptoms and take supplementary boron may wish to stop taking the supplements to see if their symptoms improve. Results of another study found that taking 3mg of boron a day elevated estrogen and testosterone levels. Increased estrogen has also been reported in women taking daily doses of just 2.5mg. In theory, such an increase in estrogen levels may increase the risk of several cancers. Because of this some experts recommend that supplementary boron intake should be limited to 1mg a day.

SOLUBILITY: Water soluble