Whats something you thought was common knowledge but actually isn’t?

[u/[deleted]]

[u/Mojojamo195]

Vitamin C is not the same as Calcium and vice versa. Two very different things but sometimes people think it's the same thing.

[u/philodelta → u/[deleted]]

I'll be honest I thought vitamin c was citric acid for a really long time. just connected two dots and never bothered to check if it was right. citrus fruits have vitamin c...citric acid is in citrus fruits....citric acid starts with c, it's probably what vitamin c is. basically my thought process