Many people try to satisfy a guinea pig's need for vitamin C feeding fresh fruits and vegetables. This can be done, but we need to make sure weβre picking veggies that have good vitamin C levels without excess sugar and limiting fruit in the diet. For example,leafy greensprovide quality ...
November 21, 2017 -Premium guinea pig pellets, such as those produced by Oxbow, are fortified with good amounts of vitamin C.

Adult male guinea pigs weighing 725 to 750 g consumed daily 32 g of a purified diet containing crystalline amino acids (equivalent to 160 g protein/kg diet) as the sole nitrogen source (Schiller, 1977). The guinea pig is best known, from a nutritional standpoint, by its requirement for dietary vitamin C.
As we can see from the illustration, Guinea Pig Nutrient Vitamin C Sources Idea has many fascinating aspects to explore.
Vitamin C per 100 grams -- Vegetables 190.0 mg -- Peppers*,Red 133.0 mg -- Parsley 130.0 mg -- Spinach, Mustard 120.0 mg -- Kale* 93.2 mg -- Broccoli 89.3 mg -- Peppers*,Green 85.0 mg -- Brussels Sprouts 85.0 mg -- Dill Weed 80.0 mg -- Lambs quarters 70.0 mg -- Mustard Greens 62.0 mg -- Kohlrabi 60.0 mg -- Turnip Greens 46.4 mg -- Cauliflower 45.0 mg -- Chinese Cabbage (pak-choi) 43.0 mg -- Watercress 35.3 mg -- Collards 35.0 mg -- Dandelion Greens 32.2 mg -- Cabbage 30.0 mg -- Chard, Swiss 30.0 mg -- Beet* Greens 30.0 mg -- Swiss Chard 28.1 mg -- Spinach 27.0 mg -- Cilantro* 25.0 mg -- Rutaba