Boron is an essential element of plants. Recent research indicates that it may be also needed by both animals and humans. Most dietary boron derives from plants, such as broccoli, legumes, nuts, apples, grapes, peaches, pears, beer, cider, wine, flaxseed and soy products, and human diets provide about 2-3mg per day. Toxic effects appear at 50 times this amount, sufficient reasons for the FAO/WHO to remove boric acid from the list of food preservatives, earlier used extensively with crustaceans, other seafoods, etc.


  • Affects the electrical activity of the brain, increasing alertness
  • Helps to maintain calcium and magnesium levels and increase estrogens in menopausal women
  • Improves the retention of calcium and prevents bone demineralization, of importance to menopausal women at risk for osteoporosis
  • Relieves arthritic symptoms
  • Used earlier as borax solution for eye infections, mouth ulcers, nasal problems, and as lotion or dusting powder for external applications.

High absorption of boron may take place from solutions applied to body cavities and mucous membranes. Therefore, boron solutions should not be used as vagina sprays, etc.

Boron may become toxic, and dusting powders containing over 5 percent borax or boric acid should not be used, especially with children.