[bookmark1231]

It’s been conjectured by some researchers that maybe this is the case, particularly for infants. But there’s very little evidence for it. As far as I’m aware there have been no studies that are able to statistically distinguish between people with and without an appendix in terms of actual heath outcomes

[delfinom]

Otoh, I wouldn't say that dismisses the appendix having a potential role. Part of the problem is we barely have a grasp on gut flora and it's full impact on human health, and several studies show that impact can be over years including potentially being one cause of dementia.