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Can Hamsters Eat Cat Food? Vet-Approved Nutrition Guide

Elizabeth Gray

By Elizabeth Gray

Hepper_Can Hamster Eat_Cat Food

Vet approved

Dr. Ashley Darby Photo

Reviewed & Fact-Checked By

Dr. Ashley Darby

Veterinarian, BVSc

The information is current and up-to-date in accordance with the latest veterinarian research.

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Hamsters might be relatively low-maintenance pets, but they must eat the proper diet to stay healthy. If you also have a cat at home, you might wonder if it’s okay for your hamster to eat cat food. While cat food may not be toxic to hamsters, it’s not healthy or nutritionally correct for them either.

Keep reading to learn why cat food shouldn’t be a significant part of your hamster’s diet and which foods make better treat options. We’ll also cover the basics of a healthy hamster diet.

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Why Cat Food Is a Bad Idea for Hamsters

The simple reason hamsters shouldn’t eat cat food is that they have much different nutrition requirements than kitties. Hamsters are omnivores that eat a mix of plants and insects in the wild. The ideal commercial hamster food should contain the following:

  • 35-40% carbohydrates
  • 15-25% protein
  • 4-5% fat

In contrast, cats are true carnivores that are adapted to absorb nutrients primarily from animals. Nutritional needs among cats vary, but general guidelines are as follows:

  • At least 26% protein
  • At least 9% fat
  • Less than 10% of calories from carbohydrates

As you can see, cats and hamsters have very different nutritional requirements. They also require different levels of vitamins and minerals. Cat food formulated to meet feline needs is not appropriate as a primary hamster diet.

Close up of dry dog and cat food in a white bowl
Image By: chatiyanon, Shutterstock

Can Hamsters Eat Cat Food as a Treat?

In theory, hamsters could eat cat food as a treat, but it’s not the best choice. Because it’s usually higher in fat than most hamster foods, eating cat food could lead to obesity over time. Like any pet, you want to ensure your hamster gets most of their calories from nutritious sources.

Cat food provides calories without much nutritional benefit to your hamster. Every calorie wasted on cat food is less available for foods that your hamster actually needs to stay healthy.

What Should Be My Hamster’s Main Food Source?

Hamsters should primarily eat a commercial pellet diet formulated for hamsters. Look for a food that contains the minimum nutrient levels we discussed earlier in the article. It’s best to avoid food mixes made primarily of seeds, nuts, and dried fruit.

Even when they’re made for hamsters, these seed diets lack essential nutrients and contain more fat and sugar than your pet should be eating regularly. Hamsters tend to pick out their favorite bits too, making the diet even more unbalanced.

hamster eating seeds
Image Credit: Andrey Sayfutdinov, Shutterstock

What Treats Can I Give My Hamster?

Instead of cat food, offer your hamster small amounts of fruits, vegetables, grains, and animal protein, like boiled eggs, as treats.

Some safe options include the following items:

  • Leafy greens
  • Apples
  • Carrots
  • Cucumber
  • Peas
  • Bananas

Serve these foods in moderation only, especially fruit. They generally aren’t necessary if your hamster eats a balanced pellet diet, but they provide variety and enrichment for your pet.

Are There Any Foods Hamsters Shouldn’t Eat?

Hamsters shouldn’t eat citrus fruits, chocolate, or any food high in sugar and fat. Check with your vet before offering your hamster any unfamiliar food to make sure it’s safe.

Milk and dark chocolate on a wooden table
Image Credit: Sebastian Duda, Shutterstock

How Much Should My Hamster Eat?

Most hamsters should eat about 1/8–1/3 cup of pellets each day. However, dietary needs vary between species and by age, size, and overall health. Ask your vet to help you calculate how much to feed your hamster. Hamsters are nocturnal, so try offering them food at night. Remove any uneaten fresh food promptly so it doesn’t spoil.

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Conclusion

Although it might be convenient for you, hamsters shouldn’t eat cat food because it isn’t nutritionally appropriate for them and could cause health issues if fed long-term. Stick with feeding your hamster a pelleted rodent diet and the occasional healthy treats. Like humans, hamsters can suffer from diabetes, obesity, and other medical problems if they don’t eat the proper diet. Talk to your vet if you’re concerned your pet isn’t getting the nutrition they need.


Featured Image Credit: Ultraskrip, Shutterstock

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