There is no college in this country that prepares students to do well on the MCAT. That is on the student.
I can’t imagine why public health would be a good major for your kid UNLESS this is an area that is very interesting to her.
Your daughter doesn’t have to choose her college major today…or even when she applies to college at many colleges. PLUS, many many college students actually switch majors and some multiple times.
What areas of study does your daughter love? Those are things to consider.