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Are blackberries high in carbohydrates?
Blackberries are not high in carbohydrates, as one cup of raw blackberries contains only about 14 grams of total carbs, which is considered low compared to many other fruits.
In fact, most of those carbs come from fiber, which your body doesn’t fully digest, so the net carbs are even lower at around 7 grams per cup.
This makes blackberries a smart choice if you’re watching your carb intake but still want something sweet and satisfying.
If you’ve been asking whether blackberries are high in carbohydrates, the short answer is no, and this post will break down the carb content of blackberries, why they’re a low-carb fruit, and how they fit into different diets.
Let’s get into it.
Why Blackberries Are Not High in Carbohydrates
Blackberries are not high in carbohydrates, and here’s why:
1. Blackberries Have a Low Total Carb Count
One cup of fresh blackberries gives you about 14 grams of total carbohydrates, which is low for a fruit.
Compare that to a cup of grapes at roughly 27 grams or a banana at around 34 grams, and you can see that blackberries are high in carbohydrates only if you stack them against very low-carb vegetables.
For fruit, they sit comfortably in the low-carb zone.
2. Most of the Carbs in Blackberries Come From Fiber
Of those 14 grams of carbs, about 7 to 8 grams are dietary fiber.
Fiber is a carbohydrate, yes, but your body doesn’t break it down into glucose the way it does with sugar and starch.
That means the net carbs in blackberries are only around 6 to 7 grams per cup, which is why blackberries are not high in carbohydrates when you look at how they actually affect your blood sugar.
3. Blackberries Have a Low Glycemic Index
The glycemic index of blackberries is around 25, which is considered low.
Foods with a low GI release sugar slowly into the bloodstream, so you don’t get the sharp spikes that come with high-carb fruits.
So even though blackberries contain carbohydrates, they’re the kind that work with your body instead of against it.
4. Blackberries Are Mostly Water
Blackberries are about 85 to 88 percent water, which naturally dilutes their carbohydrate content.
That high water content also makes them low in calories, with just 62 calories per cup.
So when someone asks if blackberries are high in carbohydrates, the water weight alone tells you they can’t be anywhere near the top of the carb list.
How Many Carbs Are in Blackberries Exactly?
If you want the exact numbers, here’s what blackberries bring to the table per 100 grams and per cup:
1. Carbs Per 100 Grams
In 100 grams of raw blackberries, you get about 10 grams of total carbs.
Of that, roughly 5 grams are fiber, leaving about 5 grams of net carbs.
That’s a tiny amount, which is why blackberries are not high in carbohydrates by any standard.
2. Carbs Per One Cup Serving
A full cup of blackberries contains around 14 grams of total carbs and 7 grams of net carbs.
For context, that’s less than half the carbs in a medium apple and about a third of what you’d get from a cup of mango.
So you can enjoy a generous bowl of blackberries without worrying that you’re loading up on carbohydrates.
3. Carbs in Frozen and Canned Blackberries
Frozen blackberries without added sugar have almost the same carb count as fresh ones, around 14 grams per cup.
Canned blackberries in heavy syrup, though, can jump to 25 grams or more per cup because of the added sugar.
So if you’re wondering whether blackberries are high in carbohydrates, the answer depends on how they’re prepared, and fresh or frozen unsweetened ones stay low.
Do Blackberries Fit Into a Low-Carb or Keto Diet?
Blackberries fit beautifully into low-carb and keto diets because they’re one of the lowest-carb fruits you can eat.
1. They Won’t Kick You Out of Ketosis
With only 7 grams of net carbs per cup, blackberries are unlikely to push you over your daily carb limit on keto.
Most people on keto aim for 20 to 50 grams of net carbs a day, so a cup of blackberries takes up a small slice of that budget.
That’s why blackberries are not high in carbohydrates in any way that matters for ketosis.
2. They Add Fiber and Antioxidants
Low-carb diets sometimes skimp on fiber, and blackberries help fill that gap.
They also pack anthocyanins, the antioxidants that give them their dark color and support heart health.
So you get nutrition without the carb load.
3. Watch Your Portion if You’re Strict
Even though blackberries are not high in carbohydrates, carbs still add up if you eat them by the bowlful.
Sticking to half a cup or one cup per serving keeps you safely in low-carb territory.
A handful on top of Greek yogurt or a salad is an easy way to enjoy them without overdoing it.
So, Are Blackberries High in Carbohydrates?
Blackberries are not high in carbohydrates, with only about 14 grams of total carbs and 7 grams of net carbs per cup.
Most of those carbs come from fiber, which your body handles gently, and their low glycemic index means they won’t spike your blood sugar.
Whether you’re on keto, low-carb, or just trying to eat smarter, blackberries are a fruit you can feel good about grabbing.
Hope this post has cleared up whether blackberries are high in carbohydrates and helped you see how easily they fit into a balanced diet.