I would consider him a good doctor anyway because he has apparently saved many strict vegans from fatal deficiency sickness. You got to thanks all these ppl's critics for helping the evolution and advancement of Veganism (B12, D,vegan DHA and etc) . Without them , there would be more of
this happening. The reverse can also be said on the junk food processed meat eater. This is the nice thing about healthy debate (Janson Vs Bryne ).