Space-Age supplement study: can nicotinamide riboside shield astronauts from tylenol toxicity?

This study looked at whether a dietary supplement called nicotinamide riboside (NR) can reduce the harmful effects of acetaminophen (like Tylenol). Researchers measured chemicals in the blood and urine of 26 healthy volunteers after taking acetaminophen alone or with NR. They also tested blood under conditions that mimic space travel. The goal was to understand how acetaminophen causes cell damage and whether NR can help protect against it.