An independent side-by-side comparison of Michael Greger, M.D. and Peter Singer across certifications, average sustainability score and product range.
95/100 avg score
1 products tracked
Certifications
98/100 avg score
1 products tracked
Certifications

Michael Greger, M.D.
Explore How Not to Die by Dr. Michael Greger, a science-based guide to nutrition that is a great value for anyone seeking a plant-based lifestyle.

Peter Singer
Read Animal Liberation Now by Peter Singer, the updated 2026 definitive text on animal ethics that is worth it for serious consciousness-centered readers.
Peter Singer scores higher on independent QuickRatey scoring: Michael Greger, M.D. averages 95/100 vs Peter Singer at 98/100.
Michael Greger, M.D. appears with 2 verified certifications (FSC Certified, Non-GMO). Peter Singer appears with 2 (FSC Certified, Vegan).
Yes. Both brands are scored by the same methodology — never paid placement. See our methodology page for the weighting.