Honey may pose hidden toxic risk

9:33am, May 14, 2002

The plant kingdom has developed an arsenal of poisons to deter predation. Among these are pyrrolizidine alkaloids. Some 3 percent of all flowering plants produce these chemicals, including such herbal-garden favorites as borage and comfrey. When bees pollinate such plants, the little buzzers risk seeding the honey they produce with worrisome concentrations of the poisons, a new study charges.

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