Probably plenty? Because of diabetes. Or because they remember high school science/chemistry. Our education system sucks, and we suck at remembering shit, but there are some things a huge number of Americants remember because our system(s) forces us to.

Some are jokes at this point (Mitochondrion are the powerhouse of the cell), others are dangerous (Shit about the Slaving Fathers), others are just wrong ("Everyone" thought the world was small, because Columbus sucked at math). Sure average joe might not know what glucose exactly is, but even I sometimes mix it up.

I like mentioning chirality to people, but even I couldn't remember if dextrose WAS glucose or if it was an isomer the other day. The average American might have some trouble with THAT sentence, but thats because its been 20 years since they've had to think about chemistry.

Couple personal examples: We had a program about maple syrup, and the older (like 30+ older) understood me better when I said "carbohydrates, like sugar" versus just saying "carbohydrates". Neurons sometimes need to be reattached, but the ideas are still floating around our mixed up brain gunk.

Grandma and family knew what glucose was, because they actually were trying to not die from diabetes. They didn't understand the full complexity of shit like fructose, etc. But they did understand both are sugars and could spike their levels.

And honestly, good for companies putting what sweeteners they're using in bigger text. Having to dig into a giant block to figure out if this is "real" sugar, some crappy artificial shit, a decent artificial one, or stevia is fucking annoying.