all the salts and most of the protiens.
Blood that comes from your Hemoglobin
The human body is about 209.5 degress celsius so any substance that has a melting point above that. Iron does so it would be a frozen substance in the human body. There are small amounts of iron in...
co2,urea,uric acid,spent hormones,excess water and salt.
it's actually not secreted. it came from the gall bladder. gall bladder stores bile.