Scientists & Doctors

Many of the world’s leading scientists have led a vegetarian or vegan lifestyle. Discover more about them here.

  • Dr Gemma Newman

    Dr Gemma Newman

    Dr Gemma Newman, also known as the Plant Power Doctor, is a British medical doctor with over 17 years experience.

  • Dr John McDougall

    Dr John McDougall

    Dr John McDougall is the premier proponent of a low-fat, high starch, wholefood plant-based diet.

  • Dr Kim Williams

    Dr Kim Williams

    Kim Williams is a vegan cardiologist who recommends a plant-based diet to his patients.

  • Dr Michael Greger

    Dr Michael Greger

    Dr Michael Greger is founder of Nutritionfacts.org and believes the evidence suggests there is one diet to rule them all: a plant-based one.

  • Dr Michael Klaper

    Dr Michael Klaper

    Dr Michael Klaper is a vegan doctor who strongly believes most of the diseases afflicting people in the west can be prevented with a plant-based diet.

  • Dr Neal Barnard

    Dr Neal Barnard

    Dr Neal Barnard is the Founder and President of the Physicians Committee for Responsible Medicine.

  • Dr Pamela Popper

    Dr Pamela Popper

    Dr Pamela Popper is a naturopathic doctor with a PhD in nutrition. She recommends a wholefood plant-based diet.

  • Dr T. Colin Campbell

    Dr T. Colin Campbell

    Dr T. Colin Campbell wrote arguably the most influential book on plant-based nutrition: The China Study.

  • Dr Vivian Chen

    Dr Vivian Chen

    Dr Vivian Chen is a UK trained medical doctor who coaches non-toxic living.