Blueberries raw fiber per 100g: the USDA number

The USDA FoodData Central entry for raw blueberries lists total dietary fiber at 2.4 g per 100 g. In practical terms, 100 g of blueberries is a little less than a cup, so that serving gives you a small but real fiber boost.

It’s also worth noting that blueberries are mostly water, so the fiber count is not especially high compared with very fiber-dense foods like beans, chia seeds, or bran cereals. Still, blueberries fit well into a high-fiber eating pattern because they’re easy to add to breakfasts, snacks, and desserts.

How 100 g of blueberries compares to common servings

A 100 g portion is useful for food logging because many nutrition databases and meal trackers are built around gram weights. If you weigh your fruit, you can compare batches, brands, and recipe ingredients more precisely than using cups alone.

For everyday eating, people often use cups or handfuls instead of a scale. If you don’t weigh fruit, the exact fiber will vary a bit by berry size and how tightly the cup is packed. That’s normal, and it’s one reason USDA-style gram entries are preferred for accuracy.

Why blueberry fiber matters

Fiber supports regular bowel movements and helps you feel fuller after meals. The National Institutes of Health notes that fiber intake is linked with better digestive health and overall diet quality, while the CDC recommends increasing fruits, vegetables, and whole grains to help Americans meet nutrient needs.

Blueberries also bring more than fiber: they contribute vitamin C, vitamin K, and polyphenols. That means they can be a useful part of meals where you want flavor, color, and micronutrients without adding much prep time.

Best ways to use blueberries for more fiber in your day

Pair blueberries with other fiber-containing foods for a more satisfying meal: Greek yogurt plus oats, cottage cheese plus chia seeds, or oatmeal topped with berries and nuts. That combination usually gives you more staying power than fruit alone.

If you’re tracking macros or trying to build better habits, it helps to log fruit by weight when possible. Fitnit can be useful for workout tracking too, since its phone-camera rep counting and form analysis can make home training easier to measure while you keep nutrition simple.

Tips

• Use a kitchen scale if you want the most accurate blueberry fiber count per 100 g.
• Choose blueberries with no added sugar if your goal is to keep calories and carbs predictable.
• Combine blueberries with oats, yogurt, or nuts to make the fiber more filling.
• If you freeze blueberries, log them by weight after portioning for easier tracking.
• Don’t rely on cups alone when you need exact nutrition data for recipes or meal plans.