> There's even a lot of titanium - fully 0.6%, much higher than 'rare' elements like carbon! [0]

Almost all our carbon goes back to the air.

This leads to the interesting concept that when you are losing weight, you are actually exhaling most of your weight loss.

Edited: Downcommenter is correct. Sorry, glitched. I was thinking about various things and pulled plants into the mix when the article is only about humans.