How many calories are in 140 grams of frozen blueberries?

November 19, 2025 •

3 min read

A 1-cup serving (140g) of unsweetened frozen blueberries typically contains between 70 and 85 calories, depending on the variety, according to various nutrition databases. This makes understanding how many calories are in 140 grams of frozen blueberries essential for calorie-conscious individuals aiming to maintain a balanced diet.

Quick Summary

A 140-gram serving of frozen blueberries contains approximately 70-85 calories, along with fiber, carbohydrates, and antioxidants. The exact count varies slightly, but they remain a low-calorie, nutrient-dense fruit.

Key Points

Low Calorie Count: A 140g serving of frozen blueberries contains approximately 70-85 calories, making it a low-calorie fruit choice.
Rich in Fiber: A significant portion of the carbohydrate content is dietary fiber, supporting digestive health.
Antioxidant Power: Freezing can break down cell walls, potentially making beneficial antioxidants like anthocyanins more bioavailable.
Versatile Ingredient: Frozen blueberries are perfect for smoothies, oatmeal, yogurt, and baking, offering a convenient, year-round nutrient boost.
Excellent Source of Vitamins: They are a good source of vitamins C and K, and manganese, supporting overall health.
Minimal Fat and Protein: With very low fat and minimal protein, they are primarily a source of carbohydrates and fiber.

Calorie Breakdown for 140g of Frozen Blueberries

When examining how many calories are in 140 grams of frozen blueberries, it's important to recognize that the specific number can fluctuate slightly based on the blueberry type (e.g., wild versus cultivated) and brand. For instance, some sources report around 71 calories for 140 grams of standard unsweetened frozen blueberries, while others cite figures closer to 80 or even 84 calories for frozen wild blueberries. This minor difference is negligible for most dietary plans, affirming frozen blueberries as a consistently low-calorie, healthy food choice.

The majority of calories in blueberries come from carbohydrates, particularly from the natural sugars found within the fruit. The remaining calories are contributed by minimal amounts of protein and fat. Despite their natural sweetness, blueberries have a relatively low glycemic index, meaning they do not cause a sharp spike in blood sugar levels.

Macronutrient Profile of 140g

Beyond the calorie count, the macronutrient composition of 140g of frozen blueberries offers a compelling nutritional profile:

Carbohydrates: Approximately 17-21 grams, depending on the variety.
Dietary Fiber: A significant portion of the carbohydrates is dietary fiber, often ranging from 3.6 to 4 grams or more. This is excellent for digestive health.
Sugar: The naturally occurring sugar content is typically around 12-15 grams.
Protein: Generally low, about 1 gram.
Fat: Extremely low, often less than 1 gram.

Fresh vs. Frozen Blueberries: A Comparison

Some people wonder if freezing affects the caloric content or nutritional value of blueberries. The short answer is no; the calorie count remains virtually unchanged. However, freezing has been shown to potentially enhance the bioavailability of certain nutrients.

The Antioxidant Boost from Freezing

According to some research, freezing can cause the cell walls of blueberries to break down. This process makes the beneficial anthocyanins, a type of antioxidant, more accessible for your body to absorb. Therefore, opting for frozen blueberries can provide an even greater antioxidant benefit than their fresh counterparts in some cases.


Feature	Fresh Blueberries	Frozen Blueberries
Calorie Count (approx. per 140g)	~80 calories	~70-85 calories
Nutrient Content	Excellent	Excellent (potentially enhanced bioavailability of antioxidants)
Availability	Seasonal	Year-round
Shelf Life	Short	Long
Best For	Snacking, fresh desserts	Smoothies, baking, sauces

Incorporating Frozen Blueberries into Your Diet

Frozen blueberries are incredibly versatile and can be used in a variety of ways to add flavor and nutrients to your meals. They are a staple for many health-conscious individuals because they are convenient and delicious straight from the freezer.

Here are some ideas for incorporating them into your daily routine:

Smoothies: Blend frozen blueberries with a banana, spinach, and a liquid of your choice for a quick, nutrient-packed smoothie.
Oatmeal Topping: Stir a handful of frozen blueberries into hot oatmeal. The heat will cause them to thaw and release their juices.
Yogurt Parfait: Layer frozen blueberries with yogurt and granola for a refreshing and crunchy snack or breakfast.
Pancakes and Waffles: Mix them into the batter for a burst of flavor in every bite.
Healthy Dessert: Simply enjoy them frozen as a naturally sweet, low-calorie treat.

The Health Benefits of Blueberries

Regardless of their frozen state, blueberries are packed with health-promoting properties. They are known for being rich in antioxidants, which help protect the body from free radicals. Blueberries are also a good source of fiber, vitamin K, and vitamin C. Regularly consuming blueberries can support heart health, brain function, and aid in managing blood sugar levels.

Conclusion

In summary, a 140-gram serving of frozen blueberries provides a modest calorie count, typically falling between 70 and 85 calories, primarily from healthy carbohydrates and natural sugars. Far from being nutritionally inferior to their fresh counterparts, frozen blueberries offer a convenient and sometimes even more potent source of antioxidants. Their versatility and rich nutrient profile make them an excellent addition to any healthy diet, whether blended into a smoothie or enjoyed as a simple, icy snack.

Learn more about the health benefits and nutritional facts of blueberries from this expert source: wildblueberries.com.

Frequently Asked Questions

No, freezing does not destroy the nutrients in blueberries. In fact, some evidence suggests that freezing can break down the fruit's cell walls, making antioxidants like anthocyanins more readily available for your body to absorb.

Neither is necessarily 'healthier' than the other; they are both highly nutritious. Frozen blueberries may offer enhanced antioxidant bioavailability, while fresh blueberries provide a different texture and are best enjoyed in season.

Yes, absolutely. Eating frozen blueberries directly is a popular way to enjoy them as a refreshing, naturally sweet, and healthy snack. There is no risk associated with consuming them in their frozen state.

Frozen blueberries are comparable in calories to other common berries. For example, 140g of frozen mixed berries can range from 60 to 80 calories, making all berries a great low-calorie fruit option.

The vast majority of calories in frozen blueberries come from carbohydrates, mainly in the form of naturally occurring sugars. They contain very little fat and a minimal amount of protein.

A 140g serving of frozen blueberries typically contains between 3.6 and 4 grams of dietary fiber, contributing significantly to your daily intake.

There can be slight variations. Some nutritional data indicates that wild frozen blueberries may have a slightly higher calorie count per 140g than some standard frozen varieties, but the difference is minimal and the wild variety is often richer in antioxidants.