They're called that because they are the size of grape seeds. Why anyone thought that made them appealing is beyond me. Grape nut flakes are pretty good though

[–] ricecake@sh.itjust.works 5 points 3 days ago

I thought it was because the guy who invented them called glucose "grape sugar" because cereal people in that era were entirely detached from reality, and he thought they tasted nutty. And that baking the cereal released glucose.

[–] jaybone@lemmy.world 2 points 3 days ago

Oh, well that makes perfect sense. Wait, no it doesn’t. I don’t call lemon seeds Lemon Nuts.