How to Feed White Mice


Feeding white mice doesn't differ from feeding any other domestic mouse. If you've ever had a wild mouse in your house, you know these tiny rodents are omnivorous. Still, just because a mouse will eat something doesn't mean he should eat it.

Mouse Chow

Your pet's core diet should consist of high quality, commercial mouse or rodent pellets, also called lab blocks, served daily in a food bowl. These foods are designed specifically for the nutritional needs of small rodents. Look for a product containing a minimum of 16 percent protein and a fat content between 4 and 5 percent.

The amount fed daily, even if you free feed, depends on the size of your mice. Expect a small mouse to consume between 4 to 5 grams of chow daily, while a larger variety might require as much as 8 grams per day. If you're breeding your mice, feed females mouse chow created for pregnant rodents.

Your mice should always have access to fresh, clean water from a water bottle with a dripper tube.


  • Scatter a few pellets and treats throughout the cage -- mice prefer to do some foraging for their meals. If you see your mice engaging in coprophagic behavior, or eating feces, don't panic. Mice need the nutrients found in this previously digested and excreted matter.

Mouse Treats

Provide your mice with small amounts of healthy treats to complement their rodent chow. Emphasis on small -- these are little animals, and overfeeding them will result in spoiled food, dirtier cages and possible intestinal upset. It also results in obesity, a common issue for pet mice. Appropriate treats include:

  • apples, bananas, pears and melon
  • and carrots, peas and celery.

Remove any uneaten food the following day and clean food dishes regularly.

Foods to Avoid

Certain foods are toxic to mice. These include:

  • raisins or grapes
  • walnuts
  • onions
  • chocolate
  • and raw beans.

While lettuce isn't toxic, it often causes diarrhea in rodents, and cabbage results in intestinal upsets. Mice love bread and cereals, but these items have little nutritional value for rodents and should be fed sparingly, if at all.

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