Risk assessment of white willow ( Salix alba) in food
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Journal: 2020/July - EFSA Journal
Abstract:
This Technical Report contains a description of the activities within the work programme of the EU-FORA Fellowship on the risk assessment of white willow in food. The bark of different varieties of willow has had a long history of medical use as a means to reduce fever and as a painkiller. Willow bark is also used in weight loss and sports performance food supplements. The labelling of these products usually does not mention any restrictions to the length of use. The recommended doses for foods differ, sometimes exceeding doses recommended for pharmaceuticals. A systematic literature review on adverse effects potentially resulting from oral exposure to white willow (Salix alba) was performed. The aim of the study was to assess the risk for humans when consuming white willow bark in food. The preliminary results show that despite the long history of use only very limited data on toxicity of white willow bark are available. However, anaphylactic reactions in people with a history of allergy to salicylates may occur. Some other adverse effects of salicylates are considered to be of low relevance for the long-time consumption of white willow bark, mainly due to relatively low concentrations of salicin and the presence of compounds with gastroprotective action. However, it seems that the content of heavy metals, mainly cadmium, should be further addressed in risk assessment of white willow bark in food.
Keywords: Salix alba; White willow; bark; cortex; food; food supplements; risk assessment.
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EFSA J 16(Suppl 1): e16081
PMID: 32704312

Risk assessment of white willow (<em>Salix&nbsp;alba</em>) in food

Correspondence: ue.aporue.asfe@arof-ue
Copyright © 2018 European Food Safety Authority. EFSA Journal published by John Wiley and Sons Ltd on behalf of European Food Safety Authority.
This is an open access article under the terms of the http://creativecommons.org/licenses/by-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited and no modifications or adaptations are made.

Notes

Suggested citation: German Federal Institute for Risk Assessment (BfR) , Unit of Food Toxicology, Germany , Matyjaszczyk E and Schumann R, 2018. Risk assessment of white willow (Salix alba) in food. EFSA Journal 2018;16(S1):e16081, 9 pp. 10.2903/j.efsa.2018.e16081 [CrossRef] [Google Scholar]

Acknowledgements: This report is funded by EFSA as part of the EU‐FORA programme.

Approved: 6 July 2018

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