How To Safely Switch Your Ferret’s Food

To switch ​​​​your ferret’s food, gradually mix increasing amounts of the new food with decreasing amounts of their current food over about seven to 14 days.  

Start with mostly familiar food and a small amount of the new food.  

If your ferret continues eating normally and seems to be doing well, gradually increase the proportion of new food every few days. 

Timelines vary, but what matters most is that your ferret keeps eating. 

It’s important to also pay attention to how much food your ferret eats.  

Ferrets sometimes hide or cache food, so an empty bowl doesn’t always mean they ate a full meal. 

Ferrets are obligate carnivores, meaning they need a meat-based diet high in animal protein and fat and low in fiber and carbohydrates. 

They have a short GI tract, which food moves through quickly, and a high metabolism, so they typically eat multiple small meals throughout the day. 

Ferrets can also develop strong preferences for familiar foods.  

Offering young ferrets a variety of appropriate foods may help encourage dietary flexibility later in life, but an adult ferret who has eaten the same food for years may be reluctant to suddenly accept something unfamiliar. 

Gradually introducing a new food helps your ferret get used to its smell, texture, and taste while you monitor how well they eat and whether any digestive changes occur. 

Use this as a general starting point for a healthy ferret who is eating normally: 

If your ferret is hesitant to eat the mixture at any point, slow down and return to the last ratio they ate willingly. 

If your ferret has a medical condition or needs a therapeutic diet, ask your veterinarian how quickly you should make the change. 

Signs the transition is going well for your ferret include: 

• Eating their usual amount of food 
• Willingly eating both the old and new foods 
• Maintaining their usual energy and activity level 
• Maintaining a healthy weight 
• Having stool that is reasonably consistent with their normal baseline 

Stool can vary somewhat with diet, so know what’s normal for your ferret and watch for significant or persistent changes. 

If your ferret won’t eat the new food, slow down the transition instead of waiting it out. 

Return to the last ratio of old and new food your ferret willingly ate. Once they’re eating reliably again, try increasing the new food in smaller increments. 

Don’t withhold your ferret’s familiar food to make them hungry enough to eat something new. Ferrets have a high metabolism and need to eat frequently, so a significant decrease in food intake can quickly cause a medical issue. 

If your ferret stops eating or seems sick, call your veterinarian right away. 

Contact your veterinarian if your ferret develops: 

• A significant decrease in appetite or refusal to eat 
• Vomiting 
• Persistent diarrhea 
• Weight loss 
• Lethargy or weakness 
• Signs of dehydration 

Don’t automatically assume that changing your ferret’s food caused these signs.  

Ferrets can develop gastrointestinal disease and other medical conditions that cause similar symptoms. 

Many healthy ferrets transition in about seven to 14 days, although some may need longer. 

It’s generally better to introduce a new food gradually. Mix a small amount of the new food with your ferret’s familiar food, then gradually increase it as long as your ferret keeps eating normally. If your veterinarian has recommended a diet change because of a medical condition, follow their instructions for how quickly to make the switch. 

Ferrets can develop strong preferences for familiar foods and may be reluctant to eat something with a different smell, taste, or texture. 

However, a decreased appetite can also signal illness, so contact your veterinarian if your ferret stops eating or eats much less than usual. 

If your ferret develops diarrhea during a food change, pause the transition. Contact your veterinarian if the diarrhea persists, is severe, or is accompanied by a decreased appetite, vomiting, lethargy, or other signs of illness. 

Yes, if it’s a complete diet made for ferrets. Look for high animal protein and fat, and low fiber and carbohydrates. You can always also ask your veterinarian if you’re unsure.