Guinea Pig Nutrition
As the main part of their diet feed them Oaten hay. Guinea pigs need a constant source of this as it encourages lengthy chewing and helps avoid their teeth from over growing. Not all hays are acceptable, no Lucerne or clover as these are too high in protein and calcium. Other acceptable hay types include: Timothy (imported), Pasture, Paddock or Ryegrass and of course normal green grass.
The rest of the diet can be made up from fresh leafy greens and herbs: broccoli, celery, endive, carrot tops, Brussel sprouts, spinach, bok choy or dark leafed lettuce varieties - parsley, dandelion, coriander, basil, dill and mint.
Guinea pigs also require a dietary source of Vitamin C, usually provided by the leafy greens, but small quantities of citrus or kiwi fruits can be supplied. Feeding rabbits and guinea pigs as a main portion of their diet the seed/grain mix from the supermarket, is a NO NO. They tend to lead to excess weight.! Unless it is a high quality pellet (usually imported) only pelleted diet as a treat. As with all pets, any dietary changes should be made gradually as it may cause tummy upsets.