They shouldn't affect your milk supply.
What do you need them for?
Just beware, that you should only take them for brief time periods, as to prevent your digestive system from becoming dependent on them.
Ok, good. I'm taking them because one of the books I'm reading got me really interested in enzymes. I've taken them before and only do it off and on depending on what I eat. If I eat something not so good for me then that's usually when I will use them. Do you know if it's ok to use them while pregnant? I'm freaking out right now because I haven't started my period yet and may be pregnant. Despite the fact that we used "protection."