Population Group
vegan Audio
veg·an [ vee-guhn, vey- ]
Definitions related to vegan:
  • A person who does not eat any foods that come from animals, including meat, eggs, and dairy products. A vegan diet is being studied in the prevention and treatment of prostate cancer and other medical conditions.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • A person who eats no meat, eggs, or dairy products.
    NCI
    U.S. National Cancer Institute, 2021
  • Persons who avoid consuming animal products or animal-derived substances, such as MEAT; EGGS; or HONEY. Some vegans also refrain from using animals or animal products in any form or for any purpose, such as in CLOTHING or household goods.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.