Can Hamsters Eat Walnuts? Read Before You Feed

Is it safe for your hamster to snack on walnuts? Find out in this comprehensive article on the topic, including information on portion size and potential risks.
Can Hamsters Eat walnuts?

Hamsters are small, adorable creatures that make popular pets due to their cute appearance and low maintenance requirements. These animals are native to arid environments and are known to be omnivores, which means they eat both plants and animals. This raises the question of whether hamsters can eat walnuts, as these nuts are a common food for humans.

Can hamsters eat walnuts?

The short answer is yes, hamsters can eat walnuts. However, it is important to feed them in moderation, as walnuts are high in fat and calories and can lead to obesity in hamsters if they are fed too frequently or in large amounts.

Nutritional value of walnuts

Omega-3 Fatty Acids

Walnuts are an excellent source of omega-3 fatty acids, which play a crucial role in maintaining healthy skin and a shiny coat for hamsters.


Walnuts provide a good amount of protein, which is essential for the growth and maintenance of hamster muscles and tissues.

Vitamins and Minerals

Walnuts are rich in vitamins and minerals, such as vitamin E, which is a powerful antioxidant that can help protect against cell damage and disease. But, always avoid roasted walnut as they may lose their nutritional benefit.

Serving Size and Frequency

Moderation is Key

It is essential to feed walnuts to hamsters in moderation, as their high fat and calorie content can lead to obesity and other health problems if consumed too frequently or in large amounts.

Introducing Walnuts to a Hamster's Diet

When introducing walnuts to a hamster's diet, it is important to do so slowly and in small amounts. This will help ensure that the hamster can tolerate the new food and avoid any potential digestive issues.

Potential Risks and Precautions

High Fat and Calorie Content

One of the main concerns with feeding walnuts to hamsters is their high fat and calorie content, which can lead to obesity and related health problems if consumed excessively.

Hard Shells

The hard shells of walnuts can be difficult for hamsters to chew and digest, potentially causing intestinal blockages if swallowed whole. To prevent this, it is best to remove the shell and only offer the nut itself to the hamster.

Avoid Roasted Walnuts

It is important to avoid feeding roasted walnuts to hamsters, as the roasting process can cause a loss of nutritional value.


In conclusion, it is safe for hamsters to eat walnuts in moderation. However, it is important to avoid feeding them too frequently or in large amounts, as this can lead to obesity and other health problems. As with any new food, it is always a good idea to introduce it slowly and in small amounts to make sure your hamster can tolerate it.

Medically Reviewed by Nauman Zaheer, DVM

Nauman Zaheer Ghumman, DVM is an MPhil qualified Licensed Veterinary Doctor with a wide range of academic writing experience, including published work in an International Veterinary journal and educational material for Pet owners.

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