# Can guinea pigs eat raspberries?

> Yes — as an occasional treat. Verdict: limit. Once or twice a week · One or two berries (about 1–2 tsp) · fresh and raw only.

Photo: A ripe red raspberry on the cane.

## Quick answer

Yes. RVC lists "Raspberry (and plant)" in its fruits to feed "once or twice a week", SPCA New Zealand counts raspberries among the treat berries, and PetMD's fruit list agrees at "Berries". One or two berries is the whole serving.

One voice disagrees. Merck Veterinary Manual's professional edition groups berries with sugary treats that "should not be fed" in its diet-composition guidance. As with blueberries and strawberries, we keep the treat band the other sources describe and quote the Merck position in full on this page.

## Are raspberries good for guinea pigs?

Raspberries are lower in sugar than many fruits, but they are still treat food: SPCA New Zealand's fruit rule — 1–2 teaspoons, one to three times a week — is the register, and it fits one or two berries. The bulk of the day stays hay, pellets and fresh vegetables.

We have no registered vitamin C figure for raspberries from our sources, so don't count them toward the 10–30 mg of vitamin C guinea pigs need daily. The leafy greens those sources single out (bell peppers, kale, parsley) do that job; a raspberry is the dessert.

## How to feed raspberries

Serve one or two berries, fresh and raw: rinsed and let to come to room temperature. Never sweetened, never from a jam or yoghurt-covered snack, and no frozen-thawed berries sitting in their own juice.

The leaves are registered too — RVC lists the plant among its safe plants and SPCA New Zealand puts raspberry leaves in its weekly tier. Wash them well and rotate them like any other green; introduce everything gradually the first time.

## Who stands behind this verdict

Written by [Patrick Li](/authors/patrick-li/). Editorially reviewed 2026-09-12 · Evidence checked 2026-09-12.

Evidence: Sources disagree · Evidence from this species · Sources differ in emphasis.

No veterinarian has reviewed this page. It is educational guidance checked by the author against the cited sources — for health decisions, talk to your vet.

## Wondering about these too?

| Food | Verdict | How often |
|---|---|---|
| [Apple](/guinea-pigs/can-guinea-pigs-eat-apples/) | limit | Once or twice a week |
| [Banana](/guinea-pigs/can-guinea-pigs-eat-bananas/) | limit | Once or twice a week |
| [Blackberry](/guinea-pigs/can-guinea-pigs-eat-blackberries/) | limit | Once or twice a week |

**See also:** the [Food Checker](/guinea-pigs/what-can-guinea-pigs-eat/) photo wall covers every reviewed food with its verdict badge.

## Related tools

- [Guinea Pig Vitamin C Calculator](/guinea-pigs/vitamin-c-calculator/): Guinea pigs need 10–30 mg of vitamin C every day because they cannot make or store it. Converts the daily vitamin C target into food and supplement portions by life stage.

## Frequently asked questions

**Q: Can guinea pigs have raspberries?**

Yes: "can have" and "can eat" land on the same answer. One or two berries, once or twice a week, fresh and raw — the treat band RVC and SPCA New Zealand describe.

**Q: Can guinea pigs eat raspberry leaves?**

Yes. RVC lists the raspberry plant among its safe plants, and SPCA New Zealand places the leaves in its once-or-twice-a-week feeding tier. Wash well and treat them as part of the same small weekly portion.

**Q: How many raspberries can a guinea pig eat?**

One or two berries per serving, once or twice a week — about the 1–2 teaspoons of fruit SPCA New Zealand allows one to three times weekly. Fruit stays the smallest part of the diet at every source we follow.

**Q: Why do some sources say guinea pigs shouldn't eat berries?**

Merck's professional manual groups berries with sugary treats in its diet-composition guidance. Three other institutions — RVC, SPCA New Zealand and PetMD — list raspberries as safe-to-feed, and no guinea-pig feeding study we found shows harm. Both positions are quoted in the evidence section below.

## Safety notes

Introduce any new food gradually: a small taste at first, building up over a week or so, and keep every serving fresh and raw. Hay stays the main event at around 80% of the day's eating, with fresh vegetables as the supplement.

**When to contact your vet**: Guinea pigs hide illness well. Contact your vet promptly if your guinea pig stops eating or passes fewer droppings, seems lethargic or in pain, has diarrhea, or shows any sudden change in behavior — small pets go downhill fast, and same-day advice is always the safe call.

## The sources behind this verdict

Sources differ on how often is safe.

1. [RVC Beaumont Sainsbury Animal Hospital: Feeding Your Guinea Pig (factsheet PDF)](https://www.rvc.ac.uk/Media/Default/Beaumont%20Sainsbury%20Animal%20Hospital/EXOTICS/Animal%20Care%20Factsheets/Guinea-pig-feeding-guidelines-and-advice-Dec-2022-NS.pdf) (grade A, 2022-12). Scope: Fruit treat list headed "Fruits (fed as treats once or twice a week):", with the plant also listed as safe. Excerpt: "Raspberry (and plant)"
2. [SPCA New Zealand: Caring for Guinea Pigs](http://www.spca.nz/advice-and-welfare/article/caring-for-guinea-pigs) (grade B, undated). Scope: Berry treat list; fruit serving guidance is 1–2 tsp, 1–3 times per week; leaves sit in the once-or-twice-a-week tier. Excerpt: "Berries (boysenberry, strawberry, blueberry, raspberry)"
3. [PetMD: What Can Guinea Pigs Eat?](https://www.petmd.com/exotic/what-can-guinea-pigs-eat) (grade B-, undated). Scope: Safe fruit list (checklist-level corroboration). Excerpt: "Berries"
4. [Merck Veterinary Manual (Professional version): Housing and Nutrition of Guinea Pigs](https://www.merckvetmanual.com/exotic-and-laboratory-animals/guinea-pigs/housing-and-nutrition-of-guinea-pigs) (grade S, 2026-05). Scope: Diet-composition context (minority position on berries, preserved verbatim). Excerpt: "Other fruits (including berries and oranges), carrots, and sugary treats should not be fed."

### Where sources disagree

> "Raspberry (and plant)" (RVC Beaumont Sainsbury Animal Hospital, grade A)

> "Berries (boysenberry, strawberry, blueberry, raspberry)" (SPCA New Zealand, grade B)

> "Berries" (PetMD, grade B-)

> "Other fruits (including berries and oranges), carrots, and sugary treats should not be fed." (Merck Veterinary Manual (Professional version), grade S) [minority position]


How we resolved it: Frequency follows RVC (A), whose fruit list is headed "fed as treats once or twice a week", with SPCA-NZ (B) in the same treat band ("1-2 tsp of fruit 1-3 times per week") and PetMD (B−) corroborating berries at checklist level. Merck Professional (S) opposes berries in its diet-composition guidance; under the scope-composable resolution the two statements address different feeding contexts, so the treat-frequency guidance carries the verdict and the Merck position is preserved verbatim as the minority view. A PubMed re-review found no guinea-pig feeding-harm studies (search recorded 2026-09-12).

Grades rate the source, not the claim: S veterinary manuals · A research & university clinics · B welfare organizations · C practitioner education · D not cited. Methodology: /methodology/.

Written by Patrick Li. This guide is informational and not a substitute for veterinary care.
Canonical page: https://petguidecalc.com/guinea-pigs/can-guinea-pigs-eat-raspberries/