Guinea pigs are strict herbivores. They therefore should not be given any animal products which includes dairy or bread.
In order to support longevity, guinea pigs need a well-balanced diet that doesn’t change greatly from day to day. A sudden change in the diet can cause indigestion and stomach upsets. New foods should be introduced gradually.
A guinea pigs daily diet should consist of a mixture of the following:
Hay or grass is the most important part of a guinea pig’s diet and it needs to be in constant supply. Apart from being high in fibre, it is essential for grinding their teeth on. Their back teeth are constantly growing so they need to be chewing and grinding all the time in order to wear them down. If their teeth are not worn down enough, a condition called Malocclusion can occur. This is where the back teeth become overgrown and could grow into the guinea pig’s gums causing much pain for these little animals.
Guinea pigs love their grass. If there is no grass handy, hay will suffice. A good tip is that if you are in an open area where there is an abundance of grass, pick handfuls and store them in a bag in the fridge or in a dark place. The guinea pigs can then be offered handfuls every day on top of the hay.
Fresh Fruit and Vegetables
I cup full of fruit and vegetables per day is adequate for your guineas. Make sure these are varied and choose one that are high in vitamin C. Some vegetables are higher in vitamin C than others. These include:
Because of the sugar content of fruit, it is best to give more vegetables than fruit. It is also best to limit citrus fruits because of the acidity content.