Best Sugar-Rich Foods for Guinea Pigs

Ranked by sugar content among foods safe for guinea pigs in the Creature Feast catalog.

Apple per 100g: ~10.4g sugar (fructose, glucose, sucrose) Apples are one of the higher-sugar fruits commonly offered to guinea pigs. A paper-thin slice once or twice a week is a nice treat, but daily feeding can tip sugar intake too high and disrupt cecal bacteria. Always remove seeds — they contain small amounts of cyanogenic compounds. The skin is fine and provides some fiber.

Strawberries per 100g: ~4.9g sugar (mostly fructose and glucose) Strawberries provide sugar alongside Vitamin C, making them a treat with some nutritional upside. One small strawberry once a week is appropriate. Guinea pigs love the sweet flavor, which makes strawberries useful for bonding — but that same sweetness means they must be strictly limited.

Watermelon per 100g: ~6.2g sugar (mostly fructose) Watermelon is mostly water and sugar, making it a hydrating but sugary treat. A small cube (thumbnail-sized) once a week is the maximum recommended amount. Remove all seeds. Watermelon's sugar hits the gut quickly, so it should never be a regular vegetable substitute.