Evaluating Echimidine Impact on Food Safety and the Health of Living Organisms.

Pyrrolizidine alkaloids (PAs), found in over 6000 plant species, pose serious risks to food safety and public health due to their potent toxicity. Among them, echimidine, a major PA in Echium vulgare and Symphytum officinale, can account for up to 30% of total PA content in contaminated honey and herbal products. This review summarizes current knowledge on the chemical properties, isolation, and metabolic profiles of echimidine, with an emphasis on its bioactivation by the cytochrome P450 enzyme into reactive pyrrolic intermediates. These intermediates form DNA and protein adducts, contributing to hepatotoxicity, genotoxicity, and developmental toxicity. Human exposure through products such as honey (up to 1 µg/g) and comfrey (5-6 mg/day) raises concern over chronic health effects. This review highlights the urgent need for improved monitoring, standardized analytical protocols, and regulatory interventions to mitigate the widespread hazards associated with echimidine.