What Do Mice Eat?

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Field mouse standing in pile of leaves
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Domestic fancy mice are omnivores, and thrive on a variety of grains, veggies and proteins. What you choose to feed your fancy mouse depends upon the need for convenience, storage space and availability of sources. From commercial mixes to made-from-scratch meals, options abound to keep your pet mouse happy and healthy.


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Seed Mixes Can Add Variety

Commonly found in pet stores, seed mixes are the least nutritionally comprehensive when it comes to diets for your mouse. Seeds are too fat for every day consumption, and should be used sparingly. Too much seed in a mouse's diet can lead to obesity and make your mouse more vulnerable to cancers and respiratory problems. When used with lab blocks or a homemade mix, seed mixes can add a little variety and stimulation to your mouse's diet.


Lab Blocks Are Convenient

Lab blocks and pellets are formulated specifically with a mouse's nutritional needs in mind, and can be the sole component in your mouse's diet. Although nutritionally sound and convenient, lab blocks provide little stimulation and no variety. Lab blocks are commercially available in most pet food stores and store easily. When choosing a brand of lab block for your mouse, be certain that the protein content is not above 18 percent; too much protein can lead to food allergies.


The Ideal Homemade Mix

Mentally stimulating and comprehensively nutritious, a mix made at home can cost much less than those sold in stores. Although not as convenient as a ready-made diet, the base of a homemade mix can be stored for weeks, and supplemented daily with fresh veggies and protein. The foundation of a good homemade mix is whole grains such as puffed rice, whole-grain dried pastas, sugarless cereals and barley. Protein sources include dried dog food, cooked ground unseasoned meat, canned tuna and eggs.


Foods to Avoid

Whether making a mix at home or purchasing one ready-made, be certain to avoid foods that are toxic to mice. Any type of citrus, blue cheese, chocolate, foods high in sugar content, high-sodium foods, grapes, walnuts, carbonated water or any fizzy liquid, milk and raw potato are all dangerous to your pet mouse. If you are unsure whether or not something may adversely affect your mouse's diet, check with your veterinarian before including.