Skip to content

Answer for Guinea pigs

Switch animal

Can guinea pigs eat lettuce?

Caution for guinea pigs

It depends on the type. Romaine and gem lettuce are listed as suitable; avoid iceberg, which the RSPCA lists as harmful to guinea pigs. Source: Royal Veterinary College, RSPCA

Conditions

When it is a problem

  • The RSPCA lists iceberg lettuce among foods that can be harmful or poisonous to guinea pigs. Source: RSPCA
  • VCA says iceberg has little nutritional value and is mostly water. Source: VCA Animal Hospitals

Sources

  1. Royal Veterinary College: Feeding your guinea pig (RVC Exotics Service) (opens in a new tab)

    “Romaine lettuce (other varieties but not Iceberg)”

    Read on 10 October 2026

  2. RSPCA: What to feed a guinea pig (opens in a new tab)

    “Avoid these as they can be harmful or poisonous to Guinea pigs. For example: Iceberg lettuce”

    Read on 10 October 2026

  3. RSPCA: What to feed a guinea pig (opens in a new tab)

    “Fresh vegetables and herbs are excellent sources of vitamin C. Rotate between these daily … Gem lettuce Romaine lettuce”

    Read on 10 October 2026

  4. VCA Animal Hospitals: Feeding guinea pigs (opens in a new tab)

    “Do not offer iceberg or head lettuce, as they have little nutritional value and contain mostly water.”

    Read on 10 October 2026

Check an item