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Gastroenterology 157: 179192.e2, 2019

Indeed some practices achieve dramatic change: One practice reduced the number of patients on B12 injections from 53 to just two

doi: 10.3390/ijms21239234 39 SarkarALehtoSMHartySDinanTGCryanJFBurnetPW

A professional can assess whether vitamin B12 is contributing to your breakouts
