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Walnuts are not high in carbohydrates, making them a fantastic low-carb friendly snack for most people.
In fact, walnuts are primarily made up of healthy fats and moderate protein, with only a small portion of their calories coming from carbs.
If you’ve been wondering, “are walnuts high in carbohydrates,” the short answer is no—they’re actually one of the lowest-carb nuts you can eat.
This makes them a popular choice for low-carb, keto, and paleo diets.
In this post, we’ll break down the carb content of walnuts, compare them to other nuts, and explain why they can fit into a carb-conscious lifestyle.
Let’s dive in.
Are Walnuts High in Carbohydrates? The Quick Answer
No, walnuts are not high in carbohydrates.
A one-ounce serving of English walnuts (about 14 halves) contains roughly 4 grams of total carbohydrates.
But here’s the kicker: about 2 grams of that is fiber.
So the net carbs—the carbs your body actually digests—come out to just 2 grams per ounce.
That’s incredibly low.
For context, most people on a standard low-carb diet aim for 20 to 50 grams of net carbs per day.
So a handful of walnuts won’t even make a dent.
This is why when people ask, “are walnuts high in carbohydrates,” the answer is a resounding no.
Instead, walnuts are celebrated for their high omega-3 fatty acid content and heart-healthy fats.
1. Total Carbs vs. Net Carbs in Walnuts
Let’s clear up the confusion between total carbs and net carbs.
Total carbs include all the carbohydrate grams in a food—starches, sugars, and fiber.
Net carbs are total carbs minus fiber (and sometimes minus half of sugar alcohols, but that’s not relevant here).
For walnuts, the total carb count is around 4 grams per ounce.
Fiber makes up about half of that.
So net carbs are only about 2 grams.
That means walnuts are not high in carbohydrates at all when you look at the carbs that actually impact blood sugar.
2. Why Walnuts Are Low-Carb Compared to Other Nuts
Not all nuts are created equal when it comes to carbs.
Let’s compare a one-ounce serving of walnuts to some other popular nuts.
Cashews, for example, have about 9 grams of total carbs and 8 grams of net carbs per ounce.
Pistachios come in at around 8 grams of total carbs and 5 grams of net carbs.
Almonds are lower, with about 6 grams of total carbs and 3 grams of net carbs.
But walnuts? They beat even almonds with just 4 grams total and 2 grams net.
So if you’re asking, “are walnuts high in carbohydrates,” comparing them to other nuts makes it clear they’re on the low end of the spectrum.
3. The Role of Fiber in Walnuts
Fiber is a carbohydrate, but your body doesn’t digest it like sugar or starch.
Instead, fiber passes through your digestive system mostly intact.
It helps keep you full, supports gut health, and can even help manage blood sugar levels.
Walnuts provide about 2 grams of fiber per ounce.
That’s a decent amount for such a small serving.
And because fiber doesn’t spike blood sugar, it’s a carb you don’t need to worry about if you’re watching your carb intake.
So when someone asks, “are walnuts high in carbohydrates,” remind them that half the carbs in walnuts are the good kind—fiber.
How Many Carbs Are in Walnuts? A Closer Look at the Numbers
Let’s get specific about the carbohydrate content of walnuts.
One ounce of English walnuts (about 14 halves) contains:
– Calories: 185
– Total fat: 18.5 grams
– Protein: 4.3 grams
– Total carbs: 3.9 grams
– Fiber: 1.9 grams
– Net carbs: 2 grams
As you can see, walnuts are not high in carbohydrates whatsoever.
They’re mostly fat and protein, with a tiny bit of carb.
Even if you eat a larger serving—say two ounces—you’re still only looking at about 8 grams of total carbs and 4 grams of net carbs.
That’s still very low.
1. Walnuts on a Keto Diet
The keto diet limits carbs to about 20 to 50 grams of net carbs per day.
With just 2 grams of net carbs per ounce, walnuts fit perfectly into a ketogenic lifestyle.
They’re a great source of fat, which is the primary fuel on keto.
And they add crunch and flavor to meals without blowing your carb budget.
So if you’re keto and wondering, “are walnuts high in carbohydrates,” you can confidently enjoy them as a low-carb snack.
2. Walnuts on a Low-Carb Diet
Even on a more moderate low-carb diet, walnuts are a smart choice.
They help keep you satisfied thanks to their fat and fiber content.
And they won’t cause a big spike in blood sugar.
You can sprinkle them on salads, mix them into yogurt, or just eat them by the handful.
Because they’re not high in carbohydrates, they won’t derail your progress.
3. Walnuts for People with Diabetes
For people managing diabetes, carbohydrate quality matters as much as quantity.
Walnuts have a low glycemic index, meaning they don’t raise blood sugar quickly.
The fiber and healthy fats slow digestion, which helps keep blood sugar stable.
So even though walnuts contain some carbs, they’re not high in carbohydrates in a way that’s problematic for most people with diabetes.
Of course, portion control still matters, but walnuts are generally considered a diabetes-friendly food.
So, Are Walnuts High in Carbohydrates?
Walnuts are not high in carbohydrates.
With only 4 grams of total carbs and 2 grams of net carbs per ounce, they’re one of the lowest-carb nuts you can eat.
Most of their calories come from healthy fats and protein, making them a perfect fit for low-carb, keto, and diabetic-friendly diets.
So the next time you’re wondering, “are walnuts high in carbohydrates,” you can rest easy knowing they’re a smart, satisfying choice.
Enjoy them as a snack, toss them in salads, or bake them into low-carb treats.
Either way, you’re getting great nutrition without the carb overload.