This is a strange thing to read. Because I am either a time-traveler or confused. I thought we already started treating peanut allergies with exposure at a young age. I might be wrong though, it's just what I've got off of memory.
Perhaps it's because it's powder instead? Or the age, that could be it. Hmm. *Reading the title, it's for sure the age thing.
Aimmune Palforzia (peanut powder therapy) is FDA approved from 4 to 17 years old till May 2024 and from 1 to 17 years old since Jun 2024. The AR101 trial for this started in Australia in 2018, for 4-17 years old. So yes, it's just the age.
I mean powder removes the fat. I don't know too much about peanut allergies. Other that exposure in general at a young age can help. Because that's how they do get some people to overcome it. But I am not sure if it's a) a specific element of the peanut people are allergic to and they remove it (or denature it to a point that it's less dangerous) paired with the fact that they're starting to give it to people even younger than typically given. Cause I believe otherwise you just get peanut butter as is? From an age 5+ abouts. (Here you noted 4).
I did read it, but I think I sorta read and pondered at the same time *As this isn't terribly new. But the powder form is as is the lower age range.