Medical schools are less concerned with your major than the quality and scope of your work. You must perform well in the required science courses. As long as you take the required science courses (e.g., as electives) and perform well in them, you can choose any major that you find interesting. For example, it's not uncommon for Psychology students or even those with majors in the humanities to take the required science couses as electives in order to apply to medical school.

