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I think a more interesting question would be: should food that contains grapefruit have a warning? Any food with high levels of phenylalanine says “phenylketon
by amluto 4y ago
I think a more interesting question would be: should food that contains grapefruit have a warning? Any food with high levels of phenylalanine says “phenylketonurics: contains phenylalanine”. Perhaps food containing substantial amounts of grapefruit should carry a similar warning.
This is complicated by the fact that other citrus fruits may have similar interactions and, at least according to Wikipedia, the full set of problematic citrus fruits is not well characterized.
- daviross 4y agoI've run into a variant of this: Beer. Citrus is a popular adjunct flavoring for IPAs and other hopped beers. Sometimes it's obvious, a grapefruit shandy is going to have grapefruit in it; but I've also had beers labeled something like Orange Citra Juice Bomb where down in the ingredients it notes that the citrus flavor is boosted by grapefruit, but I didn't catch that. Now, that's partially on me for not scrutinizing the ingredients, but also *beer doesn't have to list ingredients*. So it's entirely possible to have a beer containing a significant amount of grapefruit without any indication of it on the label. And that can be life-threatening, depending on the medication in question. So that's something where I'd definitely appreciate a standard of noting grapefruit if it's in a food. Activated charcoal similarly.
- acadapter 4y agoYes, of course there should be warnings for other citrus hybrids that produce the same chemical. But there is a limitation for HN thread titles, I had to keep the question simple.
- amluto 4y agoI don’t mean other fruit. I mean prepared foods that contain citrus.