Buzz over pollen has little backing

Bee pollen is one of several bee products, including royal jelly and propolis, sold as a dietary supplement. Bee pollen pills and powder contain bee saliva and pollen collected from plants by bees. Some manufacturers market bee pollen as a nutritious energy booster, but more than two decades of use as a health food have shown that the product can pose significant health risks for some people.

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Uses: Bee pollen is touted as a remedy for hay fever and asthma, and less commonly as an immune booster and athletic performance enhancer.

Dose: 1 to 1 1/2 grams in pill form, or one-half teaspoon to 1 teaspoon of powder. Many supplement makers recommend starting small and increasing the dose daily until allergy symptoms fade.

Precautions: Although recommended for allergies, bee pollen can cause severe reactions, including anaphylactic shock, in people with asthma and those sensitive to honey, bee stings or pollen.

Research: Much of the research on bee pollen has been done in China, where animal studies have produced mixed results on its effects on growth and the immune system. A few studies performed in the U.S. have shown that it may benefit sufferers of chronic inflammation of the prostate gland.

Dietary supplement makers are not required by the U.S. government to demonstrate that their products are safe or effective. Ask your health-care provider for advice on selecting a brand.

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-- Elena Conis