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Squirrels can eat unshelled walnuts, and these nuts are actually a fantastic natural food source for them.
If you’ve ever watched a squirrel scamper across your yard with a walnut in its mouth, you already know how much they love them.
Unshelled walnuts give squirrels something to chew through, which keeps their teeth healthy and their minds busy.
The question of whether squirrels can eat unshelled walnuts comes up a lot among backyard wildlife lovers.
The short answer is yes, squirrels can eat unshelled walnuts safely as long as the walnuts are fresh and free from mold or added seasonings.
In this post, we’ll look at why squirrels can eat unshelled walnuts, how to feed them properly, and what to watch out for.
Let’s dive in.
Why Squirrels Can Eat Unshelled Walnuts
Squirrels can eat unshelled walnuts because walnuts are a natural part of their diet in the wild.
Here’s why these nuts are such a great fit for your bushy-tailed visitors.
1. Walnuts Are Packed With Healthy Fats
Squirrels need a lot of energy to climb trees, chase each other, and store food for winter.
Unshelled walnuts are rich in healthy fats, especially omega-3 fatty acids, which give squirrels the long-lasting energy they need.
That’s one big reason squirrels can eat unshelled walnuts without any problem.
2. The Shell Keeps Their Teeth Sharp
A squirrel’s teeth never stop growing, so they need to gnaw on hard things to keep them worn down.
An unshelled walnut is the perfect chew toy and snack rolled into one.
When squirrels eat unshelled walnuts, the tough shell forces them to work for their food, which mimics how they’d forage in the wild.
3. Walnuts Offer Key Nutrients
Beyond fats, unshelled walnuts give squirrels a nice mix of protein, fiber, vitamins, and minerals.
These nutrients support healthy fur, strong bones, and a robust immune system.
So when you’re wondering if squirrels can eat unshelled walnuts, the nutritional profile alone makes them a yes.
4. They’re a Natural Food Source
Black walnuts and English walnuts grow in many of the same areas where squirrels live.
Squirrels have been eating unshelled walnuts long before humans started leaving them out on bird feeders.
That’s why offering unshelled walnuts feels so natural and why squirrels get excited the moment they spot one.
How to Feed Squirrels Unshelled Walnuts Safely
Even though squirrels can eat unshelled walnuts, you still want to feed them the right way.
Here’s how to do it without accidentally harming your furry friends.
1. Stick With Raw, Plain Walnuts
Always choose raw, unsalted, and unroasted walnuts.
Salted or flavored walnuts can upset a squirrel’s stomach and lead to dehydration.
Plain unshelled walnuts are the safest choice when you want to feed squirrels.
2. Check for Mold Before Feeding
Walnuts can develop mold if they’ve been stored in damp conditions.
Moldy walnuts contain toxins that can make squirrels very sick.
Inspect each unshelled walnut before you put it out, and toss any that look discolored or smell musty.
3. Feed in Moderation
Even though squirrels can eat unshelled walnuts, too many can lead to weight gain.
Treat walnuts as a supplement, not the main meal.
A few unshelled walnuts a day per squirrel is plenty to keep them happy and healthy.
4. Place Them Away From Bird Feeders
If you have bird feeders, squirrels will often raid them for seeds.
Putting unshelled walnuts on a separate platform or near a tree keeps squirrels busy and gives your birds a break.
This also makes it easier to control how many unshelled walnuts the squirrels are eating.
Potential Risks of Feeding Unshelled Walnuts to Squirrels
While squirrels can eat unshelled walnuts, there are a few things to keep in mind.
Here’s what to watch out for.
1. Mold and Aflatoxins
As mentioned, moldy walnuts are dangerous.
Aflatoxins produced by mold can cause liver damage in squirrels.
Always source your unshelled walnuts from a clean, dry supplier.
2. Overfeeding and Dependency
Squirrels that get too used to handouts may stop foraging naturally.
That’s why moderation matters when you feed squirrels unshelled walnuts.
Keep it occasional so they still rely on their wild instincts.
3. Attracting Other Critters
Unshelled walnuts left on the ground can attract raccoons, rats, and even bears in some areas.
If you notice other animals showing up, it might be time to cut back on how many unshelled walnuts you leave out.
4. Walnuts Are Not a Complete Diet
Squirrels can eat unshelled walnuts, but walnuts alone won’t meet all their nutritional needs.
They still need leaves, buds, seeds, and other natural foods to stay truly healthy.
Think of unshelled walnuts as a treat, not a meal replacement.
So, Can Squirrels Eat Unshelled Walnuts?
Squirrels can eat unshelled walnuts, and these nuts make a nutritious, entertaining snack for them.
The shell keeps their teeth in check, the fats give them energy, and the taste keeps them coming back for more.
Just make sure the unshelled walnuts are raw, plain, and free of mold.
Feed them in moderation, keep an eye out for other animals, and enjoy watching your backyard squirrels crack open their favorite treat.