From your post history, it seems like you are pre-med. If you've taken the typical pre-med coursework, that will be more than enough for most EH programs in terms of pre-requisites. However, if you haven't taken all the typical pre-med stuff, it's best to check with the school. I'm in a similar situation as you and have been trying to check with all the schools. Many state that they don't have any actual pre-reqs, but say they will strongly consider your science background, so I think they want at least the basic bio, chem, organic (for a lot of schools, but not all), and physics. Those are the pre-reqs I've found for schools that do have explicit ones. You don't need a science major, just certain classes.