According to About.com, blueberries are an acceptable food for guinea pigs. This fruit contains vitamin C, and it is essential that guinea pigs get an adequate amount of the nutrient. Otherwise, they develop scurvy, a serious disease.Know More
The Humane Society stresses that, since fruit contains large amounts of sugar, it should be offered to guinea pigs in moderation. Guinea pigs should eat no more than several blueberries once a day.
There are other, less sugary ways to be sure that guinea pigs consume enough vitamin C. About.com indicates that vitamin C tablets for guinea pigs are available. Also, some commercial pellets contain vitamin C, but they lose potency quickly. Therefore, pellets are best consumed before the "use by" date stamped on the package.Learn More
Guinea pigs can safely eat apples. Because apples are acidic and contain natural fruit sugars, they should be fed infrequently and in small amounts. An appropriate portion is one slice of apple once or twice weekly.Full Answer >
The main staples of a guinea pig's diet include hay, pellets and water, but they may also eat various fresh fruits and vegetables. A balance of nutritious foods keeps the animal healthy and happy.Full Answer >
Red ripe tomatoes are considered a safe food for guinea pigs, but only the ripe fruit should be fed to guinea pigs. Green tomatoes, tomato leaves and stems contain toxic compounds that can make guinea pigs ill.Full Answer >
Bananas are on the list of safe foods for guinea pigs to eat. Because bananas are high in sugar, they should only be occasional snacks, however.Full Answer >