What does a common mouse eat? - briefly
A typical house mouse consumes a variety of plant material such as seeds, grains, nuts, and fruit, supplemented occasionally by insects and other small invertebrates. This opportunistic diet enables it to thrive in both natural and human‑occupied environments.
What does a common mouse eat? - in detail
A typical house mouse (Mus musculus) is omnivorous and consumes a wide range of organic matter found in human‑occupied environments. Its diet can be divided into three primary categories:
- Grains and seeds – wheat, corn, rice, oats, and other cereal kernels provide carbohydrates and protein. Mice readily gnaw on stored grain, flour, and cracked corn.
- Animal protein – insects, larvae, small arthropods, and occasional carrion supply essential amino acids. In laboratory settings, mouse chow often includes dried mealworms or fish meal to meet this need.
- Household waste – crumbs of bread, cheese, fruit, nuts, and processed foods such as chips or candy are frequently exploited. Soft, high‑fat items are especially attractive because they deliver quick energy.
Supplementary items include:
- Vegetables – leafy greens, carrots, and peas contribute vitamins and fiber.
- Fruits – apples, berries, and grapes offer sugars and moisture.
- Pet food – dry kibble or wet canned food left unattended provides a reliable protein source.
Nutritional balance is achieved by alternating between carbohydrate‑rich plant matter and protein‑dense animal material. In the absence of preferred foods, mice can survive on limited resources, subsisting on bark, paper, or even their own feces for a short period. However, optimal growth and reproductive success require a diet that includes both energy‑dense carbohydrates and high‑quality protein.