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.

Annatto, an orange-red condiment and food coloring derived from the seeds of the achiote tree (Bixa orellana), native to tropical parts of the Americas. Image source: Wikipedia

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…