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No, guinea pigs should not eat eggs, whether raw, boiled, scrambled or as shells. Guinea pigs are strict plant-eaters, and the Vet Desk says that rules out meat and by-products such as eggs. Guinea Lynx also says never to feed them animal products. A nibble is unlikely to be an emergency, but eggs have no place in their diet.
| Safe? | No |
| How much | None |
| How often | Never |
| Best served | Not at all: they get protein from hay and greens |
| Watch out for | Diarrhoea, bloating, not eating |
Why can't guinea pigs eat eggs?
Because their whole digestive system is built for plants. The Vet Desk's vet-reviewed guide says guinea pigs are strictly herbivores, produce fewer of the enzymes that break down animal protein, and should not eat meat or by-products such as eggs. Fat and protein from animal food can upset the balance of gut bacteria and cause diarrhoea and stomach pain.
Guinea pigs can't vomit, as the Vet Desk notes, so anything that disagrees with them has to pass all the way through. They also don't need what an egg offers. The protein they need comes from good hay, fresh greens and a small daily portion of guinea pig pellets.
Raw, cooked and shells
- Raw egg: no. The ASPCA warns raw eggs can carry bacteria such as Salmonella and E. coli, and contain an enzyme that can block a vitamin pets need.
- Boiled, poached or fried egg: no.
- Scrambled egg or omelette: no. These often have butter or milk added too.
- Eggshells: no. Extra calcium is not wanted, and shell is sharp.
- Egg-based foods (cake, quiche, mayonnaise, egg fried rice): no.
- Treats or mixes with egg in the ingredients: skip them.
Why eggshells are not a calcium boost
Guinea pigs already get calcium from hay, greens and pellets. Guinea Lynx explains that too much calcium can add to bladder stones, the most common kind being calcium carbonate, and suggests stone-prone guinea pigs eat less calcium overall. Adding shell would push things the wrong way.
What if my guinea pig ate some egg?
- Take the rest away. Check the cage and floor for crumbs and shell.
- Note what it was. Raw, cooked or shell, and roughly how much.
- Give hay and water. Keep the hay rack full to help the gut move.
- Watch for a day. Look for diarrhoea, fewer droppings, a hunched back or eating less.
- Ring the vet. The Vet Desk advises contacting your vet if a guinea pig eats animal food. Call the same day if it ate more than a crumb, ate raw egg or shows any signs.
What to give instead
For safe, tasty extras, try a sprig of parsley or a strip of bell pepper. Other animal foods are a no as well: see our pages on chicken, cheese and cat food. For the full menu, read what can guinea pigs eat, our guinea pig diet guide and the guinea pig care guide.
Egg questions
Can guinea pigs eat boiled or scrambled eggs?
No. Cooking does not change what an egg is: an animal food full of protein and fat. The Vet Desk says guinea pigs are strictly herbivores and should not eat meat or by-products such as eggs. Scrambled egg is often made with butter or milk too, which Burgess calls particularly dangerous.
Can guinea pigs eat eggshells for calcium?
No. Guinea pigs get plenty of calcium from hay, greens and pellets, and too much is a worry, not a help. Guinea Lynx explains that excess calcium can contribute to bladder stones. Shell pieces are also sharp. Leave calcium to their normal diet unless your vet says otherwise.
My guinea pig ate some egg. What should I do?
Take away any more, give hay and fresh water, and watch eating and droppings for a day. The Vet Desk advises contacting your vet if a guinea pig eats animal food, and that is the safe step if more than a crumb was eaten, or the egg was raw.
What about cake, egg fried rice or other foods with egg in?
No. Foods made with egg usually bring sugar, starch, fat, salt or onion as well, and none suit a guinea pig. Cake is mostly sugar and flour, and the Vet Desk says rice is not suitable for guinea pigs at all.
