I use digestive enzymes when I've eaten protein or fats. If I didn't do that, I would probably have a hole in my stomach by now. I eat a piece of dried papaya (about an inch long) when I've eaten fats or hard to digest non-protein foods, and I take 1/4 of a digestive enzyme tablet that includes:

Pancreatin
alpha-Amylase
Betaine Hydrochloride
Pepsin
Papain
Ox Bile Extract 8:1

...when I've eaten protein. Works like a charm, and I can still have one cup of coffee a day. And there are no side effects.