Can Guinea Pigs Eat Grapes?
Short answer: yes, as an occasional treat. Grapes are not known to be toxic to guinea pigs (unlike dogs), but they are high in sugar, so give one or two seedless grapes, cut in half, no more than once or twice a week.
How many grapes can a guinea pig eat?
| Guinea pig | Grapes | How often |
|---|---|---|
| Adult | 1-2 seedless grapes, halved | 1-2 times a week |
| Young (under 3 months) | a small piece | occasionally, after they eat hay and pellets well |
Fruit is a treat for guinea pigs. Too much sugar can cause diarrhea, weight gain and dental problems.
How to serve grapes
- Wash well, use seedless grapes, and cut them in half.
- Red or green grapes are both fine.
- No raisins: they are dried and far more sugary.
- Remove uneaten fruit within a few hours.
What guinea pigs should eat every day
- Unlimited grass hay (timothy hay, orchard grass): about 80% of the diet.
- Fresh vegetables, about a cup a day for each guinea pig: bell pepper (rich in vitamin C), romaine lettuce, cilantro, parsley, carrot tops.
- Guinea pig pellets with vitamin C, a small measured amount.
- Fresh water at all times.
Foods guinea pigs must not eat
Chocolate, onions, garlic, chives and leeks, avocado, potatoes and potato peels, rhubarb, mushrooms, iceberg lettuce in quantity (little nutrition, can cause diarrhea), seeds and nuts, dairy and meat.
See how long guinea pigs live and their age in human years with the calculator below, and check that their cage is big enough with the cage size calculator.
Sources: RSPCA guinea pig diet guidance; Merck Veterinary Manual (guinea pigs).
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This guide is general information, not veterinary advice. Your pet may differ: ask your vet. Terms
Frequently asked questions
Are grapes toxic to guinea pigs?
Grapes are not known to be toxic to guinea pigs. The concern is sugar, so keep them as an occasional treat.
How many grapes can a guinea pig have?
One or two seedless grapes, halved, once or twice a week.
Can guinea pigs eat grape leaves or stems?
It is safest to remove stems and avoid vines, which may have been sprayed with pesticides.
What fruit is best for guinea pigs?
Small amounts of fruits rich in vitamin C, such as kiwi, orange or strawberries, a few times a week. Bell pepper is an even better daily source of vitamin C.