AID TO DIGESTION is a term used to describe substances that help the body break down food and absorb nutrients. SALIVA, which is a 6 letter word, is a fluid produced by the salivary glands in the mouth that helps to moisten food for easier swallowing and digestion. Beano, which is a 5 letter word, is an over-the-counter dietary supplement containing an enzyme that helps break down complex carbohydrates into simpler sugars, making them easier to digest.