They probably kept eating food while drinking, if Ralph is getting mostly alcohol categories he's heading towards wernicke encephalopathy town. It's known as "end stage alcoholism" for a reason. If he went and got treatment right now they could at least give him B1 and thiamine shots to help stave it off while he works to try and combat his addiction. It's really one of the worst ways to go, first you end up losing control of your bowels and bladder, then you lose your memories (both short and longterm), if left untreated it induces a state of psychosis with full-on hallucinations, blindness and eventual death. It's fucking nightmarish.