Do Mice Eat Spiders? What You Should Know About Their Diet
When you see a mouse darting across your kitchen floor, you probably picture it nibbling on crumbs or raiding your pantry. But have you ever wondered: Do mice eat spiders? The answer might surprise you.
In this article, we will explore whether mice eat spiders, why this happens, and what this means for your pest control strategies at home.
Do mice eat spiders? Learn why mice sometimes eat spiders, what it means for your home, and how to prevent both pests from taking over your space.
Do Mice Eat Spiders?

Do mice eat spiders? Yes, it is very likely that mice do eat spiders, but it is not their primary food source, just like I previously mentioned in our last article about mice and ants.
Mice are omnivores, which means they eat a variety of foods, including grains, fruits, seeds, and occasionally insects.
When other food sources are scarce, a mouse will readily consume spiders as a source of protein and sustenance.
In fact, wild mice are more likely to eat spiders than house mice because they often have fewer options available.
Why Would Mice Eat Spiders?
Mice are opportunistic feeders. They will not go out of their way to hunt down spiders, but if a spider crosses their path or is easy to catch, a mouse will likely eat it. Here are a few reasons mice might snack on spiders:
- Food Scarcity: When preferred foods are limited, mice expand their diet to include insects and spiders.
- High Protein: Spiders provide protein that helps mice stay healthy, especially during the breeding season.
- Survival Instinct: In the wild, mice have to be flexible with their diets to survive.
Read also:ย Do Mice Eat Ants? What You Should Know
Do Mice Help Control Spider Populations?

Although mice occasionally eat spiders, they are not effective spider control agents. Mice do not actively hunt spiders or consume enough of them to make a noticeable difference in spider populations.
In fact, seeing both mice and spiders in your home usually points to a bigger problem: a welcoming environment with food, moisture, and shelter.
What Do Mice Typically Eat?

To better understand where spiders fit in a mouseโs diet, here is a look at their preferred foods:
- Grains and seeds
- Fruits and vegetables
- Pet food and leftover scraps
- Insects like cockroaches, beetles, and spiders
- Nuts and dried goods
Do mice eat spiders? Yes, spiders are listed in their diets; however, they are only a small part of their broader diet.
Should You Worry if Mice Are Eating Spiders in Your Home?
While it may seem helpful that mice eat spiders, the reality is that having both pests indicates a problem with sanitation or access points.
Mice eating spiders does not solve the infestation; as a matter of fact, I think both pests need to be addressed directly.
How to Keep Mice and Spiders Out of Your Home
Whether or not mice eat spiders, the goal should be to prevent both from moving in. Here are some tips:
- Seal Entry Points: Use caulk or steel wool to close gaps around pipes, vents, and foundation cracks.
- Store Food Properly: Keep all pantry items in airtight containers.
- Declutter: Spiders hide in piles of boxes and clutter, and mice use clutter as shelter.
- Eliminate Moisture: Fix leaks and reduce humidity in basements and crawl spaces.
- Use Traps and Baits: Place mouse traps in areas where you have seen droppings or activity.
- Maintain Regular Cleaning: Vacuum floors, clean counters, and remove crumbs daily.
Read also:ย Do Mice Eat Cockroaches? What This Means For Your Home
Do Mice Eat Spiders? (FAQs)
Do Mice Prefer Spiders Over Other Foods?
No, mice prefer grains, fruits, and seeds. They only eat spiders when other food is scarce.
Can Having Spiders Keep Mice Away?
No, spiders do not repel mice. In fact, mice will eat spiders if they come across them.
Will Mice Help Reduce Spider Infestations?
Mice may eat a few spiders, but they will not control an infestation. You will still need separate pest control measures.
Do Mice Eat Other Insects?
Yes, mice sometimes eat cockroaches, beetles, and other small insects, particularly when protein is needed.
Should I Be Concerned If I Have Both Mice and Spiders?
Yes, their presence suggests an environment that attracts pests. It is best to address sanitation and entry points immediately.
Conclusion
Do mice eat spiders? Yes, but not because they love them. Mice, like most rodents, are opportunistic and will consume spiders when needed, especially if other food sources are limited.
However, having mice and spiders indoors points to a bigger problem: your home is too inviting to pests.
To keep your home pest-free, I would advise you to do the following:
- Seal entry points
- Remove clutter
- Store food properly
If the problem persists, consider contacting a professional pest control service to develop a customized solution. With the right approach, you can ensure that mice and the spiders they snack on stay out for good.
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