Yes, strawberries contain sugar, but they’re one of the lowest-sugar fruits you can eat. A cup of whole strawberries has about 7 grams of sugar, which is half the amount in a banana and less than a third of what you’d get from a cup of grapes. That low sugar content, combined with fiber and a gentle effect on blood sugar, is why strawberries are often recommended even for people watching their carb intake.
How Much Sugar Is in a Serving
One cup of sliced strawberries (about 168 grams) contains roughly 8 grams of total sugar. If you’re eating whole berries, a cup packs closer to 7 grams because fewer berries fit in the cup. For context, that’s less sugar than a single tablespoon of honey.
The sugars in strawberries are a natural mix of fructose, glucose, and a small amount of sucrose. These are the same types of sugar found in all fruit, but the total quantity per serving is what sets strawberries apart. They simply don’t carry much.
How Strawberries Compare to Other Fruits
Strawberries consistently land in the “low sugar” category when stacked against other popular fruits. Here’s how a few common options compare:
- Strawberries (1 cup whole): 7 grams of sugar
- Raspberries (1 cup): 5 grams
- Cantaloupe (1 cup): 5 grams
- Banana (1 medium): 14 grams
- Cherries (1 cup): 18 grams
- Grapes (1 cup): 23 grams
- Mango (1 whole): 46 grams
Strawberries have roughly half the sugar of a banana and a fraction of what’s in grapes or mangoes. Among berries, only raspberries come in slightly lower. If you’re choosing fruit specifically to keep sugar intake down, strawberries are one of the best options available.
Why Strawberry Sugar Doesn’t Spike Blood Sugar
Not all sugar hits your bloodstream the same way. Strawberries have a glycemic index of 40, which is considered low. (Anything under 55 is low, and pure glucose sits at 100.) That means the sugar in strawberries enters your bloodstream gradually rather than all at once.
A big reason for this slow absorption is fiber. Strawberries contain about 3 grams of fiber per cup, and that fiber acts as a physical barrier in your digestive tract, slowing the breakdown and absorption of sugar. The result is a steadier, more modest rise in blood sugar compared to what you’d get from the same amount of sugar in juice or candy. Pairing strawberries with a source of protein or healthy fat, like yogurt or nuts, slows this process even further.
Strawberries on a Diabetic or Low-Carb Diet
Strawberries are one of the more diabetes-friendly fruits. The Johns Hopkins Patient Guide to Diabetes lists 1ΒΌ cups of whole strawberries as one “fruit choice,” equal to 15 grams of carbohydrate. That’s the standard serving size used in meal planning for people with type 2 diabetes, and most guidelines suggest two fruit servings per day as a reasonable starting point.
Because of their low glycemic index and fiber content, strawberries are unlikely to cause the kind of blood sugar spike that higher-sugar fruits can. If you’re counting carbs or managing diabetes, strawberries give you a relatively large, satisfying portion for a modest carb cost. You get more volume on your plate per gram of sugar than almost any other fruit.
For people following a general low-carb diet rather than managing a medical condition, strawberries fit comfortably into most plans. A half-cup serving keeps you under 5 grams of sugar, which is easy to work into even stricter carb limits.
Natural Sugar vs. Added Sugar
The sugar in a fresh strawberry is not the same thing, nutritionally, as the sugar in a strawberry-flavored candy bar. Fresh strawberries deliver their sugar packaged with fiber, water, vitamin C, and antioxidants. Your body processes this differently than it processes refined sugar, which arrives without any of those accompanying nutrients and hits your bloodstream much faster.
Where things change is with processed strawberry products. Strawberry jam, strawberry yogurt, dried strawberries, and strawberry-flavored drinks often contain significant added sugar on top of whatever natural sugar the fruit provides. A single tablespoon of strawberry jam can have 8 to 10 grams of sugar, roughly the same as an entire cup of fresh berries but without the fiber or volume. If sugar content matters to you, fresh or frozen unsweetened strawberries are the cleanest options.