Is 1 cup of blueberries healthy?

Blueberries are known for being a superfood that is rich in antioxidants and provides many health benefits. One cup of fresh blueberries contains around 85 calories and is packed with essential vitamins, minerals, fiber and phytonutrients. Eating just 1 cup of blueberries a day can contribute to a healthy diet and provide multiple health advantages.

How Many Blueberries are in 1 Cup?

One cup of raw blueberries contains around 85 berries depending on their size. Since blueberries vary in dimensions, the exact number can range from 70 to 100 berries per cup. The average medium sized blueberry is around 1/2 inch wide.

On average, 1 cup of fresh blueberries weighs around 5.3 ounces or 150 grams. Once blueberries are dried, the serving size shrinks to around 1/4 cup or 30 grams equivalent to 1 cup of fresh berries. Frozen blueberries may have slightly more as freezing causes expansion.

Nutrition Facts for 1 Cup of Blueberries

Here are the nutrition facts for 1 cup (148g) of raw blueberries according to the USDA:

Nutrient Amount
Calories 84
Carbohydrates 21.4g
Fiber 3.6g
Sugar 15.4g
Protein 1.1g
Vitamin C 14.4mg
Vitamin K 28.6mcg
Manganese 0.3mg
Vitamin B6 0.1mg

As you can see, just one cup of raw blueberries provides a significant dose of vitamins, minerals, fiber and antioxidants while being low in calories. Let’s look closer at some of the key nutrients.


Blueberries contain both soluble and insoluble fiber. One cup provides 14% of the daily recommended intake of fiber. Eating blueberries can help promote digestive health and keep you feeling full. Fiber also slows down the absorption of sugar to help regulate blood glucose levels.

Vitamin C

With 14.4 milligrams of vitamin C per cup, blueberries are an excellent source of this essential nutrient. Vitamin C is a powerful antioxidant that supports immune function and helps produce collagen for healthy skin. A single serving provides over 15% of your daily vitamin C needs.

Vitamin K

Important for blood clotting and bone health, vitamin K is another nutrient that blueberries deliver. One cup contains over 30% of the recommended daily intake. Getting enough vitamin K may also help reduce inflammation and decrease risk of heart disease.


Blueberries are one of the richest sources of manganese. A mineral that plays a role in bone production and converting nutrients into energy, one cup of blueberries provides half of the daily recommended manganese intake. Manganese also acts as an antioxidant and anti-inflammatory agent.


What makes blueberries a superfood is their high antioxidant content. They contain significant levels of anthocyanins, resveratrol, flavonols and tannins which help combat free radicals and oxidative stress. Studies show that eating blueberries can boost antioxidant levels throughout the body. Their antioxidants are associated with reducing risk of chronic illnesses, improving brain function and more.

Benefits of Eating 1 Cup of Blueberries Daily

Making one cup of blueberries part of your regular balanced diet can provide many benefits:

Supports Heart Health

Eating blueberries is linked to reduced risk of cardiovascular disease. Blueberries are high in compounds called anthocyanins that may lower blood pressure, reduce arterial stiffness and decrease inflammation that can lead to heart disease. The fiber, potassium and vitamin C also support a healthy heart.

May Aid Blood Sugar Control

Despite their sweet taste, blueberries have a low glycemic index, meaning they do not cause significant spikes in blood sugar. The fiber content also slows absorption of sugar from the blueberries to provide steady energy. Studies show blueberries may increase insulin sensitivity and improve blood sugar regulation especially for people with type 2 diabetes.

Boosts Brain Function

Antioxidants in blueberries like anthocyanins and flavonoids cross the blood-brain barrier and concentrate in brain tissue. Research indicates eating blueberries regularly can improve memory, enhance cognition, delay cognitive aging and may help prevent neurodegenerative diseases like Alzheimer’s and dementia.

Supports Digestive Health

The fiber in blueberries promotes regularity, prevents constipation and contributes to a healthy gut microbiome. Blueberries contain prebiotics that feed the beneficial probiotic bacteria in the intestines linked to numerous health advantages. The antioxidants in blueberries may also reduce inflammation in the digestive tract.

May Support Weight Loss

Blueberries are low in calories, high in fiber and contain mostly water, making them an excellent food for losing weight or maintaining weight loss. Their effects on blood sugar regulation can also help reduce fat storage and control appetite by stabilizing blood glucose spikes.

Fights Inflammation

Chronic inflammation is at the root of most diseases. The anthocyanins and other antioxidants in blueberries possess strong anti-inflammatory properties that may help lower systemic inflammation when consumed regularly. Less inflammation is tied to lower risk for illness and disease.

May Reduce Cancer Risk

The phytonutrients, vitamin C, fiber and antioxidants in blueberries make them a potential cancer-fighting food. Blueberries contain compounds shown to decrease tumor growth and proliferation in laboratory studies. Early research indicates blueberries may inhibit development of certain cancers like colon cancer.

Supports Immune Function

The antioxidant content in blueberries helps neutralize free radicals from exposure to toxins, pollution, stress, sun damage and other sources that can weaken immunity. Vitamin C is also essential for immune cell function. This makes blueberries an ideal food to support the body’s natural defenses.

Protects Skin Health

Collagen breakdown is a major cause of wrinkles and loss of skin elasticity. The vitamin C in blueberries helps stimulate collagen production to keep skin firm and supple. Anthocyanins also increase skin hydration and may protect against damage from UV radiation.

Easy to Add to Your Diet

Blueberries have a delicious sweet and tart flavor that makes them easy to enjoy as a fresh fruit or added ingredient. Try adding them to smoothies, oatmeal, salads, yogurt, baked goods and more. They also make a healthy afternoon snack. Frozen wild blueberries offer year-round access to get your daily serving.

Are There Any Downsides to Eating Blueberries?

For most people, eating one cup of blueberries per day does not have any downsides. Here are a few things to consider:

– Sugar content – While blueberries are low glycemic, a cup still provides 15 grams of sugar. People restricting sugar intake, like those with diabetes, should account for this.

– Allergies – Blueberries contain purines. In rare cases, individuals with gout could experience flares from the high purine content. People with food allergies should also exercise caution.

– Pesticide residues – To minimize exposure to potentially harmful chemicals, choose organic blueberries when possible. Wash all blueberries thoroughly before eating.

– Medication interactions – The compounds in blueberries could potentially interact with blood thinners like Coumadin and NSAID pain relievers. Check with your doctor for medication interactions.

– Artificial dyes – Some processed blueberry products may contain artificial dyes and flavors. Read ingredient lists to verify sources.

As long as you are not allergic, diabetic or on medications that interact with blueberries, eating one cup of fresh berries daily is considered very healthy and safe.

Tips for Adding More Blueberries to Your Diet

Here are easy ways to eat 1 cup or more of blueberries every day:

– Toss them in Greek yogurt and top with sliced almonds for a parfait

– Mix with cottage cheese for a high protein, high antioxidant snack

– Include in a green salad with walnuts, feta and balsamic vinaigrette

– Blend them into a smoothie bowl with bananas, milk, and chia seeds

– Make homemade blueberry muffins using almond or coconut flour

– Simmer 4 cups frozen blueberries with lemon juice and sweetener and spoon over oatmeal

– Fold into pancake, waffle or muffin batter before baking

– Top full fat plain Greek yogurt with blueberries, honey and cinnamon

– Simmer into a blueberry compote to top angel food cake or pound cake

– Freeze into blueberry bite-sized “cookies” for a refreshing frozen treat

– Mix with spinach, avocado, chicken or turkey for a antioxidant-rich salad

– Add to cottage cheese along with toasted walnuts and mint for a snack

– Blend into a frappe, either just blueberries or with banana and cocoa powder

Blueberry Superfood Recipes to Try

Here are some nutritious and delicious blueberry recipes containing at least one cup of the superfood:

1. Blueberry Avocado Toast

Ingredients: 2 slices whole grain bread, 1⁄2 avocado mashed, 1 cup blueberries, 2 tbsp honey.

Instructions: Toast bread then spread with mashed avocado. Top with blueberries and drizzle with honey.

2. Blueberry Protein Smoothie

Ingredients: 1 banana, 1 cup Greek yogurt, 1 cup blueberries, 2 tbsp honey, 2 tbsp chia seeds, 1 scoop protein powder, 1 cup milk.

Instructions: In a blender, combine all ingredients and blend until smooth.

3. Blueberry Almond Overnight Oats

Ingredients: 1⁄2 cup old fashioned oats, 1⁄2 cup milk, 1⁄2 cup Greek yogurt, 1 cup blueberries, 2 tbsp sliced almonds

Instructions: In a jar, layer oats, milk, yogurt, blueberries and top with almonds. Seal and refrigerate overnight.

4. Blueberry Chicken Salad

Ingredients: 3 cups mixed greens, 1 cup blueberries, 1⁄2 rotisserie chicken shredded, 1⁄4 cup toasted walnuts, 2 oz feta cheese, 3 tbsp balsamic vinaigrette.

Instructions: Toss together greens, blueberries, chicken, walnuts and feta. Add dressing right before serving.

5. Blueberry Basil Lemonade

Ingredients: 1 cup blueberries, 1 cup water, 1⁄4 cup lemon juice, 10 basil leaves, 4 tbsp honey

Instructions: Blend all ingredients together until smooth. Strain out pulp and basil. Serve over ice if desired.

The Bottom Line

Eating one cup of blueberries per day provides substantial health benefits with very minimal risk due to their stellar nutrition profile. The fiber, vitamins, minerals and antioxidant compounds in blueberries support heart health, brain function, blood sugar regulation, immunity, skin health, weight loss and more. It’s easy to get your daily cup by using blueberries in smoothies, oatmeal, salads or snacks. Given their many benefits and versatility, blueberries are truly a superfood worth enjoying every day.

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