It doesnt matter at all what you major in. I majored in kinesiology and even without med school in the picture, for kinesiology I was REQUIRED to take statistics, calculus, bio 1/bio 2 & labs, chem 1/chem 2 & labs, physics 1/physics 2 & labs, Human anatomy & lab, Human Physiology & lab, cardiovascular physiology & lab , exercise physiology & lab, and upper level nutrition - all taken in the BIO/PHYS/CHEM/MATH departments with all the bio majors. To complete prereqs for med school... remaining I only had to take ochem 1/ochem 2 and biochem (since some schools require it - might as well). The only additional course I took just to look a little better/prepare me more was Cell bio. So with taking cell bio, I was about 2 bio classes away from being a bio major, it's really not too different of classes we take when all the prereqs are done.