Can guinea pigs eat grass?

In this brief guide we will answer the question “can guinea pigs eat grass?” We will also discuss the risks of feeding guinea pigs with grass. We will also discuss the benefits of grass to Guinea pigs.

Can guinea pigs eat grass?

Yes, guinea pigs do eat grass. Guinea pigs have the food adaptation of a herbivore and therefore obtain their nutrients from plant matter for survival. Guinea pigs are found in the wild where they feed on the grass among other herbs but grass is one of their major staple nutrition sources.

Guinea needs roughage in all their diet. Roughage is mainly found in grass. Roughage is essential in trimming their teeth that are continuously growing. Roughages are also a great source of fiber for guinea pigs’ diet. Roughages are good for adding bulk to the food and therefore ease of digestion. 

In case you have Guinea pigs as pets. It is important to occasionally serve them with grass among other foods for fiber and roughage. You can also give them Grass hay such as Oaten hay, Timothy, and barley.

The Guinea pig should not be fed with clover hay and Lucerne. These two types of Grass hay contain a lot of calcium and protein which is hard for the digestive system of Guinea pigs to process and break down.

What are the risks of serving Guinea pigs with Grass?

Feeding guinea pigs with too much grass is also not good. Too much grass can cause allergic reactions in pigs. These allergic reactions have symptoms such as diarrhea and vomiting. In case your guinea pigs experience these symptoms every time you feed them with grass, it is best to consult a Vet.

The grass is easily attacked by Mold. Grass that has been attacked by mold can be poisonous to guinea pigs and even fatal if the guinea pigs consume them in large amounts.

Grass should be examined before being fed to Guinea pigsYou can also wash the grass after plucking them from the field.

Lastly, Guinea pigs should not be fed with grass seeds. Grass seeds contain a lot of fat that can be difficult for guinea pigs to consume. If the guinea pigs eat a lot of these seeds, they can be harmful to their health and even cause obesity.

Which other foods are good for Guinea pigs?

Herbs and Leafy Vegetables

Leafy green vegetables such as Kales and lettuce are important to the nutrition of guinea pigs. Varieties such as Snow peas, rockets, and dandelions. You can also feed guinea pigs with herbs such as marigold, dill, rosemary, borage, coriander, and basil.

It is also good to feed Guinea pigs with foods like Capsicum which have high vitamin C content. You can also add fruits to their diets such as pineapples, carrots, and berries. Foods high in sugar content should not be fed to Guinea pigs.

Guinea pig pellets

Guinea pig pellets are loaded with lots of minerals and vitamins. You should buy guinea pigs that are high in quality. An example is The small pet type of guinea pigs food pellet. In addition to pig pellets, it is important to give guinea pigs a lot of water to aid in digestion.

Why is Grass good for Guinea pigs?

Grass contains a lot of antioxidants which help in eliminating the free radicals in the body which end up damaging the cells and causing diseases. Grass also helps in reducing the levels of cholesterol in the body of guinea pigs. 

Cholesterol is found in the body of animals and also humans. It is waxy and harmful to the body when it is at high levels. Guinea pigs are most susceptible to high cholesterol levels and hence need to be protected from it. Cholesterol is good but not in large amounts. Foods such as grass hay help reduce the levels of cholesterol.

The grass is helpful in controlling the levels of blood sugar. The grass is not high in sugar content in fact grass hays have almost zero sugar levels in them. High blood sugar levels in guinea pigs can easily lead to death. 

Blood sugar level can also cause other symptoms such as frequent movement of the bowels, headache, tiredness, and even thirst. 

Moreover, grass helps in reducing inflammation and speeding up recovery. The chlorophyll in grass is a natural anti-inflammatory.. Chlorophyll prevents inflammation due to its ability to inhibit some specific proteins that cause inflammation.

For more details on the types of grass that are good for Guinea pigs. Click here.


In this brief article, we have answered the question, “can guinea pigs eat grass?” We have also discussed the risks of feeding Guinea pigs with too much grass and the health benefits of feeding grass to guinea pigs. 

Hope you find this blog useful, in case of any questions, please let us know.


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