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HomeDear VetBabbleWhy does my 8-week-old Syrian hamster have green poop after eating cabbage...

Why does my 8-week-old Syrian hamster have green poop after eating cabbage and carrots?


Dear VetBabble

Why is my 8-week-old Syrian hamster having green poop after I fed her cabbage and carrots? Can lettuce be causing this issue, and if so, what should I feed her instead?


Hamsters, like many small animals, have specific dietary needs that should be met in order to maintain their overall health and wellbeing. When it comes to identifying potential problems with your hamster’s health, the appearance of their poop can be a helpful diagnostic tool. In this case, the presence of green poop may indicate a digestive issue related to the consumption of cabbage, carrots, and possibly lettuce. Let’s take a deeper dive into the dietary requirements for hamsters and what to feed them instead.

Dietary Considerations for Hamsters

For Syrian hamsters, the ideal diet will provide a balance of nutrients and energy to support their natural development and growth. Commercially available hamster food is specifically formulated to meet these needs, and should be the main component of their diet. However, you may want to add various fresh fruits and vegetables for variety and additional vitamins and minerals, but they should be given in very small amounts – especially for young hamsters. Overfeeding fresh food can lead to diarrhea and other digestive issues, which could explain the green poop you’ve noticed. As mentioned, lettuce might not be the most suitable vegetable for hamsters. Dark, leafy greens (like kale or spinach) should be fed sparingly as they can also cause diarrhea in large amounts. Some safe options to supplement your hamster’s diet include apples, carrots, peas, and broccoli, but always be sure to introduce new foods slowly and in moderation.

Always be cautious with specific foods like cabbage and lettuce, since they can cause gas and bloating in hamsters if fed in large quantities. For more information on what to feed your guinea pig, check out Vetbabble’s guide.

Dietary Considerations for Other Small Animals

Just like hamsters, other small animals have their own unique dietary requirements. For example, hedgehogs and gerbils have different dietary needs compared to guinea pigs or hamsters. If you have other small pets, it’s important to be aware of their specific diets to ensure their optimal health.

For hedgehog owners, we recommend our Hedgehog Care Guide for comprehensive information on their diet. Hedgehogs require a well-balanced diet consisting of high-protein, low-fat food, such as high-quality dry cat food combined with various insects, fruits, and vegetables.

For gerbil owners, you can refer to our Guide on How to Care for a Gerbil for more information on their diet. Gerbils primarily thrive on a diet composed of mixed seeds and pellets, supplemented with fresh fruits and vegetables in small amounts. Always avoid feeding them high-fat or high-calorie treats, as this can lead to obesity and other health problems.


When it comes to the health of your hamster or other small pets, their diet plays a crucial part in ensuring they remain happy and healthy. By paying close attention to their dietary requirements and adjusting accordingly, you’ll reduce the likelihood of digestive issues such as green poop. Remember to always consult with a knowledgeable veterinarian when it comes to your pet’s health and wellbeing, especially if you notice any worrying signs like diarrhea or changes in their appetite. As pet owners, it’s our responsibility to provide our pets with the best possible care, and that includes being informed about their specific dietary needs.

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