Blueberry nutrition facts at a glance

A 1-cup serving of raw blueberries (about 148 grams) contains roughly 84 calories, 21 grams of carbohydrate, 3.6 grams of fiber, 1.1 grams of protein, and less than 1 gram of fat. That makes blueberries a filling fruit for relatively few calories.

That same serving also provides about 14 milligrams of vitamin C, 29 micrograms of vitamin K, and a helpful amount of manganese. Exact numbers can vary a bit by variety and ripeness, but blueberries are consistently a strong source of fiber and several key micronutrients.

Why blueberries are considered nutrient-dense

Blueberries stand out because they deliver vitamins, minerals, and protective plant compounds with very little energy density. In practical terms, you get a lot of nutrition per bite. They’re also mostly water, which helps support hydration and makes them easy to eat in larger portions without feeling heavy.

Their most talked-about phytochemicals are anthocyanins, the pigments responsible for the blue-purple color. These compounds are associated with antioxidant activity, and research has linked berry-rich diets with benefits for heart and metabolic health as part of an overall balanced diet.

Health benefits tied to blueberry nutrition

The fiber in blueberries can support digestive health and help you feel fuller after eating. Fiber also helps slow the absorption of sugar when blueberries are eaten with other foods, which can make them a smart choice for snacks and breakfast bowls.

Blueberries may also support cardiovascular health when they replace more processed sweets or are part of a diet rich in fruits, vegetables, whole grains, and healthy fats. The best evidence points to blueberries as one piece of a healthy dietary pattern, not a stand-alone cure-all.

How to eat blueberries for the best nutritional payoff

Fresh and frozen blueberries are both nutritious. Frozen berries are usually picked at peak ripeness and can be just as useful nutritionally as fresh, especially when fresh berries are out of season. Unsweetened frozen blueberries are a great option for smoothies, oatmeal, yogurt, and baking.

Watch for added sugars in blueberry products like jams, syrups, sweetened dried blueberries, and flavored yogurts. Those foods may still contain some blueberry nutrients, but the sugar content can rise quickly. For the most balanced option, choose plain berries and add your own sweetness only if needed.

Tips

• Use blueberries as a topping for Greek yogurt, oatmeal, cottage cheese, or salads to add fiber and micronutrients.
• Choose fresh or frozen unsweetened blueberries more often than sweetened dried versions or sugary blueberry snacks.
• Pair blueberries with protein or healthy fat, such as yogurt, nuts, or chia seeds, for better satiety.
• Keep frozen blueberries on hand so you always have a nutrient-rich fruit option available.
• If you’re tracking meals or building a higher-protein breakfast, a photo-based food log can help you see how blueberries fit into the full meal.