What’s in 100 g of blueberries?

According to USDA FoodData Central, 100 g of raw blueberries contains about 57 calories, 14.5 g of carbohydrate, 2.4 g of fiber, 10 g of sugar, 0.7 g of protein, and 0.3 g of fat. That makes blueberries a light, nutrient-dense fruit rather than a high-calorie snack.

The same amount also provides useful micronutrients, especially vitamin C, vitamin K, and manganese. Exact values can vary a little by variety and ripeness, but the overall profile stays similar: mostly water, modest natural sugar, and a small amount of fiber.

Why 100 g blueberries can be a smart portion

A 100 g portion is big enough to feel satisfying but still small enough to fit easily into most meal plans. If you’re watching calories, it adds very little energy compared with many packaged snacks. If you’re counting carbs, most of the carbs come from natural fruit sugars, with fiber helping slow digestion a bit.

Blueberries also stand out for their anthocyanins, the pigments that give them their deep blue color. These compounds are part of why berries are often discussed in heart- and brain-health research. That doesn’t make them a cure-all, but it does make them a strong choice compared with many sweet snacks.

How 100 g blueberries fits into real life

You can eat 100 g blueberries on their own, but they’re especially easy to use with yogurt, oatmeal, smoothies, cottage cheese, salads, or cereal. They also work well in baking when you want sweetness without a lot of added sugar.

For portioning, 100 g is roughly a small bowlful or a little under a cup of blueberries, depending on berry size. If you’re logging food in an app, using a kitchen scale is the most accurate way to track it.

Storage, selection, and quick nutrition context

Choose berries that look plump, dry, and evenly colored, with a whitish bloom on the skin. Skip containers with lots of crushed berries or visible mold. Refrigerate them promptly and wash them right before eating so they stay firm longer.

If you’re comparing fruit options, blueberries are a good middle ground: more fiber than some fruits, far fewer calories than dried fruit or juice, and easy to combine with protein or healthy fats for a more balanced snack. If you’re building consistent eating habits alongside training, Fitnit can help you stay structured on the workout side too with phone-based rep counting and form feedback.

Tips

• Weigh blueberries once or twice to learn what 100 g looks like in your usual bowl or container.
• Pair blueberries with protein, such as Greek yogurt or cottage cheese, for a more filling snack.
• Use frozen blueberries if you want the same fruit year-round; nutrition is similar, though texture changes.
• If you’re tracking carbs closely, log blueberries by weight rather than volume for better accuracy.
• Wash berries just before eating, not before storing, to help reduce spoilage.