100 grams of blueberries is a small, practical portion that fits easily into breakfast bowls, smoothies, and snacks. It gives you a modest amount of calories, natural sugar, fiber, and key micronutrients.

If you are tracking food more closely, weighing blueberries is more accurate than eyeballing a cup. The exact number of berries in 100 grams varies by size, but the nutrition stays very similar.

What’s in 100 grams 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 grams of natural sugar, 0.7 grams of protein, and 0.3 grams of fat. It is also mostly water, which is one reason blueberries feel light but satisfying.

Micronutrients in a 100-gram serving include about 9.7 mg vitamin C, 19.3 mcg vitamin K, 0.336 mg manganese, and 77 mg potassium. These amounts are not huge on their own, but they add up when blueberries are part of a fruit-rich diet.

How many blueberries is 100 grams?

The number changes with berry size, but 100 grams is often around 60 to 75 fresh blueberries. Smaller berries will give you more pieces, while larger berries will give you fewer.

For meal tracking, grams are more reliable than cup measurements because cup size can vary depending on whether the berries are packed loosely or tightly. If you use a food photo app, a weighed serving is the best way to confirm your portion.

Health benefits of a 100-gram serving

Blueberries are known for their anthocyanins, the plant compounds that give them their deep blue color. Research links blueberry intake with antioxidant activity and potential benefits for heart and metabolic health, especially when they replace less nutritious snacks.

The fiber in 100 grams of blueberries can support fullness and regularity, while the vitamin C and manganese contribute to normal immune function and metabolism. Blueberries are also naturally low in sodium and have no added sugar when eaten plain.

If you are building healthier habits, blueberries are an easy fruit to keep on hand. Pairing them with yogurt, oats, cottage cheese, or nuts can make a snack more balanced and more filling.

Easy ways to use 100 grams of blueberries

Use 100 grams as a topping for oatmeal, Greek yogurt, chia pudding, pancakes, or cereal. It also works well in smoothies, especially when you want sweetness without adding juice or sweeteners.

For portion control, 100 grams is a helpful benchmark if you are watching calories or carbohydrates. If you are active and tracking meals around workouts, Fitnit can make it easier to log portions from photos and keep your nutrition records consistent.

Tips

Sources

  1. FoodData Central — USDA
  2. Vitamin C Fact Sheet for Consumers — NIH Office of Dietary Supplements
  3. Blueberries: A superfood with benefits? — Harvard Health
  4. Blueberries — Mayo Clinic

Frequently Asked Questions

How many calories are in 100 grams of blueberries?

About 57 calories for raw blueberries.

Is 100 grams of blueberries one serving?

Yes, it is a common single-portion amount, though some nutrition labels use 140 grams as a reference serving.

Are blueberries high in sugar?

No. A 100-gram serving has about 10 grams of natural sugar, which is moderate for a fruit serving.

Are frozen blueberries the same as fresh?

Nutritionally, they are very similar if they are plain and unsweetened.

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