If you’re looking up 100g of blueberries macros, the short answer is that blueberries are a low-calorie fruit with most of their energy coming from carbohydrates, especially natural sugars and fiber.
A 100-gram serving is a practical reference point because it makes it easier to compare blueberries with other fruits, track portions, and fit them into a balanced meal or snack.
100g of blueberries macros at a glance
According to USDA FoodData Central, 100g of raw blueberries contains about 57 calories, 14.49g of carbohydrates, 2.4g of fiber, 9.96g of sugars, 0.74g of protein, and 0.33g of fat. That makes blueberries a carb-based food with very little protein and fat.
Because blueberries are so low in fat and protein, they usually work best as part of a meal that already includes one or both of those nutrients, such as Greek yogurt, cottage cheese, oats, or a protein shake.
What those numbers mean for your diet
The carb total in 100g of blueberries is moderate for fruit, but the calorie count stays low because blueberries are mostly water. The fiber content also helps slow digestion a bit and can make the serving more satisfying than the sugar number alone might suggest.
If you are tracking macros closely, the main thing to remember is that blueberries contribute more carbs than protein or fat. That matters for low-carb plans, pre-workout snacks, and meal planning when you need to budget carbs carefully.
How 100g compares to a typical portion
One cup of blueberries is often close to 140 to 150g depending on size, so 100g is a little less than a standard cup. In real-life eating, that means a small bowl or a generous handful may be around this amount, but it is best to weigh them if you need accuracy.
For anyone trying to estimate portions by eye, 100g of blueberries is a useful benchmark because it is easy to overpour fruit into yogurt, oatmeal, or smoothies. If you want tighter tracking, a food scale or a photo-based meal tracker can help reduce guesswork.
Best ways to use blueberries in macro-friendly meals
Blueberries fit well in breakfasts and snacks because they add volume, sweetness, and fiber without a large calorie hit. Try them with plain Greek yogurt, on top of oats, blended into a smoothie, or paired with nuts for a more balanced macro profile.
If you also train regularly, pairing your nutrition tracking with workout tracking can make it easier to stay consistent. Fitnit can help with automatic rep counting for common exercises and camera-based form analysis, which is useful when you want a simple at-home routine alongside your meal tracking.
Tips
- Use a food scale if you need precise macro tracking; blueberries vary a lot by cup size and berry size.
- Pair blueberries with protein or fat, like yogurt or nuts, to make the snack more filling.
- If you are counting carbs, log blueberries by weight rather than by handful for better accuracy.
- Frozen blueberries are usually similar in macros to fresh blueberries, but check the label if sugar has been added.
- For meal photos, include the whole serving in frame so an app can estimate portion size more accurately.
Sources
- FoodData Central — USDA
- Blueberries — Harvard Health
- Nutrition and Healthy Eating — CDC
- Nutrition — Mayo Clinic
- National Center for Biotechnology Information — PubMed
Frequently Asked Questions
How many calories are in 100g of blueberries?
About 57 calories.
How many carbs are in 100g of blueberries?
About 14.49g of carbs.
Are blueberries high in sugar?
They contain natural sugar, about 9.96g per 100g, but they are still relatively low in calories.
Do blueberries have much protein or fat?
No. 100g of blueberries has only about 0.74g protein and 0.33g fat.
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