And how many times are people warned about grapefruit's interaction with certain drugs? Or have seen a sticker on a prescription container like the one pictured here...?
https://www.health.harvard.edu/staying-healthy/grapefruit-and-medication-a-cautionary-note
From the article: “When grapefruit juice blocks the enzyme, it’s easier for the medication to pass from your gut to your bloodstream.”
Now it makes sense when I would read about Hunter S. Thompson ordering supplies for his parties. “Okay - I need two cases of Tequila, a trained monkey with a parrot and a crate of grapefruit.”