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by Ekaros 700 days ago
They are small first of all so reactive. And having so close full orbitals they really really want to get rid or take that electron. Thus aggressively make things happen...

And why it is yummy, well they are pretty useful atoms in lot of chemistry and in general balancing things that happens in body. Thus it is nice to have sufficient amount around... Best way to encourage this is to make it taste good like sugar does too.