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Harmful foods

Sugars are commonly associated with dental cavities. Other carbohydrates, especially cooked starches, e.g. crisps/potato chips, may also damage teeth, although to a lesser degree (and indirectly) since starch has to be converted to glucose by salivary amylase (an enzyme in the saliva) first. Sugars in foods that are more 'sticky', such as toffee, are likely to cause more damage to teeth than those in less 'sticky' foods, such as certain forms of chocolate or most fruits.