To become a psychiatrist, what do I major in?

Hi, I know there are a few similar threads on this topic but they are all from 2009, so I wanted a more updated response. I am a senior in high school and have applied to colleges with an intended major of psychology. I love the topic and want to major in it and my plan was to take medical school pre-requisites along with my major. However, my father recently talked to his psychologist about it and said it may be beneficial for me to do a 7 year medical program, like one that is offered at... To become a psychiatrist, what do I major in?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums