Are Black Walnuts Good For Squirrels

Black walnuts are good for squirrels, and they’re actually one of the most important natural food sources these bushy-tailed foragers rely on.
 
If you’ve ever wondered whether black walnuts are good for squirrels, the short answer is yes, because these nuts provide fat, protein, and energy that squirrels need to survive.
 
This post will walk you through why black walnuts are good for squirrels, how they fit into a squirrel’s diet, and a few things to keep in mind.
 
Let’s dig in.
 

Why Black Walnuts Are Good for Squirrels

Black walnuts are good for squirrels for several solid reasons, and here’s what makes them such a valuable food source.
 

1. They’re Packed With Healthy Fats

Black walnuts are loaded with fats, and that’s a big deal for squirrels because fat is the most concentrated source of energy available in nature.
 
Squirrels burn through a lot of calories, especially in fall when they’re scrambling to cache food before winter hits.
 
The fats in black walnuts help squirrels build up the reserves they need to stay warm and active when food gets scarce.
 

2. They Provide Quality Protein

Black walnuts also deliver a healthy dose of protein, which squirrels need for muscle maintenance and overall body function.
 
Protein matters even more for pregnant females and young squirrels that are still growing.
 
So when you ask if black walnuts are good for squirrels, the protein content alone makes them a yes.
 

3. They’re a Natural, Wild Food Source

Black walnuts come from native trees that have been part of North American forests for thousands of years.
 
That means squirrels have evolved right alongside these trees, and black walnuts have long been a reliable part of their natural diet.
 
When squirrels eat black walnuts, they’re eating exactly what nature intended them to eat.
 

4. They Support Caching Behavior

Squirrels don’t just eat black walnuts on the spot; they bury them, and that caching behavior is essential for their survival.
 
A single squirrel can stash thousands of nuts in a season, and black walnuts are a favorite because their hard shells keep the nutmeat fresh underground.
 
This means black walnuts are good for squirrels not just as food, but as a survival strategy.
 

How Squirrels Eat Black Walnuts

Squirrels are experts at cracking into black walnuts, even though the shells are notoriously tough.
 

1. They Gnaw Through the Hard Shell

A squirrel’s incisors never stop growing, and they’re sharp enough to chew through the thick shell of a black walnut.
 
It takes effort, but squirrels are built for the job, and the payoff is a rich, fatty nut inside.
 

2. They Eat the Nutmeat, Not the Hull

The green hull on the outside of a black walnut isn’t what squirrels are after; it’s the nutmeat inside the shell they want.
 
That inner kernel is where all the nutrition lives, and squirrels know exactly how to get to it.
 

3. They Bury What They Don’t Eat

Any black walnuts a squirrel doesn’t eat right away get buried for later.
 
Some of those buried nuts get forgotten, and that’s actually how new black walnut trees grow, which keeps the cycle going.
 

Are Black Walnuts Safe for Squirrels?

Black walnuts are safe for squirrels, and there’s no need to worry about toxicity when squirrels eat them in their natural environment.
 

1. No Toxicity Concerns for Squirrels

While black walnuts can be harmful to some plants and even irritating to dogs, they’re perfectly safe for squirrels.
 
Squirrels have been eating black walnuts for ages without any issues, so there’s no toxicity risk here.
 

2. Watch Out for Moldy Nuts

The one real concern with black walnuts is mold, which can develop if the nuts sit in damp conditions for too long.
 
Moldy nuts can contain mycotoxins that aren’t good for squirrels or any other animal.
 
If you’re putting out black walnuts for squirrels, stick with fresh, dry nuts and toss any that look moldy or smell off.
 

3. Moderation Still Matters

Even though black walnuts are good for squirrels, they shouldn’t make up a squirrel’s entire diet.
 
Squirrels also need fruits, seeds, buds, and other foods to stay healthy, so black walnuts work best as part of a balanced menu.
 
If you’re feeding squirrels in your yard, offering a mix of foods is always the better move.
 

So, Are Black Walnuts Good for Squirrels?

Black walnuts are good for squirrels, plain and simple.
 
They provide the fats, protein, and energy squirrels need, and they’ve been a natural part of the squirrel diet for thousands of years.
 
Just keep an eye out for moldy nuts, offer them in moderation alongside other foods, and you’ll be giving your local squirrels a treat they’ll happily bury, crack open, and enjoy.