Pyrrolizidine alkaloids from Echium plantagineum can transfer into honey.
Echium species contain pyrrolizidine alkaloids, and measurable transfer into honey has been documented. European and Australian food safety bodies have assessed the issue and set guidance, and blending with other honey is the standard mitigation. Levels in commercially blended honey are generally well below levels of concern, and single-source Echium honey consumed in quantity is the situation regulators have looked at.
What this does not claim: This does not claim Australian honey is unsafe. It does not claim any specific product exceeds guidance levels, and it does not apply to honey where Echium is a minor component.
- Council Directive 2001/110/EC relating to honey — Council of the European Union (2001) · Regulatory guidance Link