This completely depends on the medical school(s) you apply to. You will probably have to take things like psychology, biology, microbiology, statistics, etc. depending on the school. A quick Google search will easily inform you.
IF, however you want to be a physician, don’t let an extra year dissuade you. It’s a small investment over a long career.
You should also look deeper into what physicians do day in and day out. Everything looks romantically cool from the outside. When you become an insider, the novelty will wear off. Make sure you are genuinely interested in the grind of medicine before making the jump.
Good luck.