So there’s one already - acarbose - it kinda blocks metabolizing starch and hence blocks its uptake. You don’t get diarrhea (that’s just because my idea tried t

So there’s one already - acarbose - it kinda blocks metabolizing starch and hence blocks its uptake. You don’t get diarrhea (that’s just because my idea tried to block the transporter which also transports sodium). But acarbose blocks starch metabolism so the bacteria in your tummy metabolize it and make you incredibly and unbearably flatulent. So not something you want to do if you have anyone else in your home lol.