What’s in 100g of blueberries?

According to USDA food data, 100 grams of raw blueberries provides about 57 calories, 14.5 grams of carbohydrate, 2.4 grams of fiber, 10.0 grams of sugar, 0.7 grams of protein, and 0.3 grams of fat. That makes blueberries a low-calorie fruit with a moderate amount of natural sugar.

A 100g serving also supplies small but useful amounts of micronutrients, including vitamin C, vitamin K, and manganese. Exact values can vary slightly by variety and freshness, but the overall profile is consistent: mostly water and carbohydrates, with modest fiber and very little fat or protein.

Why blueberries are considered a smart fruit choice

Blueberries stand out because they deliver sweetness without a lot of calories. The fiber helps slow digestion compared with juice or candy, and the fruit’s deep color comes from anthocyanins, a class of plant pigments that have been studied for antioxidant activity.

Research on fruit-rich eating patterns consistently supports getting more whole fruit rather than refined snacks. Blueberries are not a magic food, but they are a convenient way to add produce to your day. If you’re tracking nutrition for weight management or athletic performance, they’re easy to portion and log accurately.

How to use a 100g blueberry serving

A 100g portion works well in yogurt, oatmeal, cottage cheese, chia pudding, or a smoothie. It also makes a good pre-workout or post-workout carb source if you want something light and easy to digest.

For home training routines, pairing a blueberry snack with a protein source can be useful after exercise. Fitnit can help with workout form and rep counting, which can make it easier to keep your training consistent while you keep your nutrition simple.

Buying, storing, and tracking

Choose berries that look dry, plump, and deeply colored, with no visible mold or leaking juice. Refrigerate them unwashed and rinse just before eating to help them last longer.

If you’re counting calories or macros, weighing blueberries is more accurate than guessing by volume because berry size varies. A food scale makes 100g easy to measure, and frozen blueberries usually work well too when fresh berries are out of season.

Tips

• Weigh blueberries in grams if you want accurate calorie and carb tracking.
• Use blueberries with protein foods like Greek yogurt or eggs to make snacks more satisfying.
• Store berries dry and wash them right before eating to help prevent spoilage.
• Choose whole blueberries over juice or sweetened blueberry products to keep fiber intact.
• If you train at home, keep a simple routine and use Fitnit for form checks and rep counting.