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Maltodextrin is made by breaking starch into shorter carbohydrate chains. It can make a label look less sugary while still adding fast-digesting carbohydrate.

Malt extract is part of the flavourings family. This section includes vanilla forms, plant extracts, essential oils, flavouring substances, and blended flavour declarations that make a product taste like something else.

Beta-cyclodextrin is an E-number additive (E459) used as a emulsifier. On labels, this code tells you the ingredient is being used for a technical function rather than as a whole-food ingredient. Wikipedia records its status as: Approved in the EU.