Thomas is a diabetic. While at work, he began to tremble, was somewhat disoriented, and showed signs similar to that of a drunk.

Thomas is a diabetic. While at work, he began to tremble, was somewhat disoriented, and showed signs similar to that of a drunk. One of his colleagues gave him some hard candy, which seemed to help him return to normal functions. Why did hard candy have this effect? Was giving hard candy a proper action, considering that Thomas is diabetic?