
Nectar with a Buzz: Ethanol Found in Flowers Used by Pollinators
UC Berkeley researchers found ethanol in the nectar of 26 of 29 plant species, meaning bees and hummingbirds regularly ingest tiny amounts of alcohol as they forage; most levels are trace, with one sample at about 0.056% ethanol. For hummingbirds, this could amount to roughly the equivalent of a human one alcoholic drink per day; experiments show they tolerate modest alcohol but avoid higher concentrations, and feathers contain a metabolite indicating alcohol processing. The findings suggest dietary ethanol is widespread and may subtly affect pollinator behavior, with ongoing studies comparing intake across species.













