What humans are made of Posted on 19/02/202327/02/2023 by prolific holes 65% oxygen,18.5% carbon,9.5% hydrogen,3.2% nitrogen. Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to email a link to a friend (Opens in new window)