Letter: A Warning That New Food Colouring Called Annatto Can Trigger Nut Allergy
Paul Farrow shares his experience discovering a new ingredient being used to replace chemical food dyes, and warns readers of the cross-reaction potential for those with nut allergies.

LETTER TO THE EDITOR
I’ve suffered from severe nut allergies my whole life and have learned to be militant about checking labels for known allergens. However, I have been quite sic…
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