Sensitization to food groups, occurring later in life after a triggering event, is common and may represent a public health issue.

“And she said, oh yeah, I see this all the time. Every day. I see this all the time. And I was like, this isn't unusual? And she's like, no, I see this thing all the time. ANDREW HUBERMAN: This thing meaning sensitivity to onions? SEAN MACKEY: Sensitivity to certain, no, to these different food groups and this thing that occurs later in life. Something, an event that happens to somebody that triggers. And I said, well, gosh, that sounds like a public health problem. And she's like, that's what we're debating right now in the allergy community is whether this is representing more of a public health issue.”