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Best Protein-Rich Foods for Guinea Pigs
Ranked by protein content among foods safe for guinea pigs in the Creature Feast catalog.
#1
Timothy Hayper 100g dry: ~7-11g protein (varies by cutting)Timothy hay is the protein foundation for guinea pigs, providing steady amino acid delivery through the day. With hay comprising 80% of the diet, even its moderate protein percentage contributes the majority of a guinea pig's daily protein. The slow fermentation in the cecum also allows gut bacteria to synthesize additional amino acids.
#2
Peasper 100g: ~5.4g proteinPeas are one of the highest-protein vegetables safe for guinea pigs, offering a good amino acid profile for a plant source. Feed the whole pod for combined protein and fiber. Limit to a few pods per serving since peas are calorie-dense and can cause gas if overfed.
#3
Kaleper 100g: ~4.3g proteinKale delivers more protein per gram than most vegetables guinea pigs eat. It also provides lysine, an amino acid often limited in plant-based diets. Rotate with low-calcium greens since kale's high calcium can contribute to bladder sludge over time.
#4
Broccoliper 100g: ~2.8g proteinBroccoli provides solid vegetable protein along with fiber and vitamin C. Both florets and stems are edible for guinea pigs, though stems are lower in gas-producing compounds. Introduce gradually to avoid bloating, and limit to 1-2 small florets per serving.
#5
Spinachper 100g: ~2.9g proteinSpinach has good protein for a leafy green, but its high oxalate content limits how often it should be fed. Oxalates bind to calcium and can form bladder stones, a serious concern for guinea pigs. Use as an occasional protein-and-iron boost, not a daily staple.
