When a supplier removes an allergen from a product, this does not automatically update the allergen information within your menus, these need to be manually removed from the product by the customer on their account, this can be actioned by following the below steps:
Log in to the account.
Select the Admin cogs
icon.
Click Allergens.
Click Supplier allergen report.
Select the number highlighted in red.
Tick the box next to the allergens to be removed.
Select Remove Allergens.