Campesterol and sitosterol indicate the absorption of plant sterols, which may be relevant for individuals who consume plants and want to assess if they are hyper-absorbing them.

“the other two molecules we talked about are sort of interesting the camp ester all and the site Oscar all these are plant sterols so they'll give us a sense of how much we are absorbing plant sterols and that is that is useful for people if they do have plants in their diet they could see if they are hyper absorbing plant sterols”