1) Study abroad is fine but more importantly, clinical trips and physician shadowing abroad can hurt your application
https://www.aamc.org/download/47425...al-shadowing-experience-executive-summary.pdf
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Member schools expressed significant concern with regards to premedical students engaging in unsupervised clinical activities in international settings [emphasis added]. In particular, 45-50% of those schools completing the survey described applicant involvement in invasive procedures in international settings as either harmful to, or of no value to, their application. Examples of such invasive procedures include giving vaccinations, suturing an injury, pulling teeth, and delivering a baby. This concern of admissions officers persisted, albeit at lower levels (35-40% of respondents), when the students were supervised by a health professional while performing such invasive procedures in international settings.
see my post
AAMC Med School Survey Summary on Clinical Experiences
2) In a 2013 AAMC survey* where 127 medical admissions offices responded,
found research experience is only of medium importance at private schools and of low importance to public schools as an experiential factor in offering both interview invitations and acceptance. Healthcare experience, community service/volunteer experience, experience with underserved populations, navigated through cultural barriers or challenges, leadership experience were considered of higher importance in factors for interview invites and offers of acceptances. This was further borne out in the 2015 AAMC Survey** where 130 medical school admissions found that both community service or volunteer in both medical and non-medical settings ranked higher in importance than physician shadowing
https://www.aamc.org/download/434596/data/usingmcatdata2016.pdf#page=7
see page 3 (pdf p7) Table 1. Mean Importance Ratings of Academic, Experiential, and Demographic Application Data Used by Admissions Committees for Making Decisions about Which Applicants to Receive an Interview Invitation and Offer Acceptance (N=127)
**
https://www.aamc.org/download/462316/data/2017mcatguide.pdf#page=9
See page 4 (pdf page 9) Table 1. Mean Importance Ratings of Academic, Experiential, Demographic, and Interview Data Used by Admissions Committees for Making Decisions about Which Applicants Receive Interview Invitations and Acceptance Offers (N=130)
3) attempting a double major with a minor will by itself, impress an adcom. You need to major in GPA and minor in MCAT. what academic concentration you do to get there is almost immaterial. Indeed, overloading yourself with additional coursework risks impact on GPA and insufficient time and energy to prepare for MCAT
In sum, you should be considering both clinical and non-clinical volunteering with shadowing of doctors in US based facilities