Fructaid is available as a easily swallowable capsule. Within a few minutes, the capsule dissolves in the stomach and releases the glucose isomerase pellets it contains. There, these small ingredients mix with the porridge mixture, but are protected from a coating from stomach acid. Then the glucose isomerase pellets get into the small intestine and have an effect there. The enzyme released from the pellets converts the fructose in glucose in the cheating and thus prevents digestive disorders.