Did you know your cows are made of a lot of metal?
Over a dozen metals are used by the body, for example Iron is a crucial component of blood allowing oxygen to be carried around the body.
A lot of the other metals involved in metabolism we will have heard of like Copper, Zinc and Selenium. Perhaps you won’t have heard of some of the ones needed in tiny quantities like Nickel, Boron and Chromium. Most unlikely of all...