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They grow on flowering shrubs and belong to the genus Vaccinium, which includes other berries like cranberries and bilberries. While their benefits are impressive, it’s also important to understand their potential side effects, the best ways to include them in your diet, and whether they’re right for everyone. For most healthy people, moderate overconsumption may cause digestive discomfort but isn’t dangerous. Freezing actually preserves most nutrients in blueberries, sometimes even better than refrigeration of fresh berries over time.
Other important species in North America include V. pallidum, the hillside or dryland blueberry. Hybrids of this with other Vaccinium species adapted to southern U.S. climates are known collectively as southern highbush blueberries. More research may be necessary to understand the full extent of blueberries’ health benefits. This may include protecting against heart disease, diabetes, and obesity, among other conditions.
Antioxidants
Sparkleberry, V. arboreum, is a common wild species on sandy soils in the Southeast. The rabbiteye blueberry (Vaccinium virgatum syn. V. ashei) is a southern type of blueberry produced from the Carolinas to the Gulf Coast states. Several First Nations communities in Ontario are involved in harvesting wild blueberries. In some areas, it produces natural "blueberry barrens", where it is the dominant species covering large areas. So-called "wild" (lowbush) blueberries, smaller than cultivated highbush ones, have intense color. In North America, the most common cultivated species is V. corymbosum, the northern highbush blueberry.
A study from the University of Reading found that children who consumed a blueberry drink showed improved mood and reduced depression symptoms compared to a placebo group. Chronic inflammation is at the root of most modern diseases — from diabetes to cancer to arthritis. They’re low in calories, high in fiber, and loaded with micronutrients. In this article, we’ll explore the 16 amazing health benefits of blueberries, examine their impressive nutritional profile, and discuss potential side effects. In a reference amount of 100 g (3.5 oz), blueberries supply 57 calories of food energy, and are a moderate source (11-16% of the Daily Value, DV) of vitamin K, vitamin C, and manganese, with other micronutrients in much smaller contents (table).
Powerful Anti-Inflammatory Properties
Fold fresh or frozen blueberries into muffin, cake, and bread batters for moist, flavorful baked goods. Blend frozen blueberries into smoothies with spinach, banana, and Greek yogurt for a nutrient-dense meal. Simply wash them gently and pop them into your mouth for an instant burst of flavor and antioxidants. Individuals with diabetes should monitor their blood glucose response and include blueberries as part of their carbohydrate counting if necessary. Starting with smaller portions and gradually increasing intake can help minimize these effects.
Animal studies in the review suggest that blueberries may also help to prevent obesity and manage obesity-related conditions. Since blueberries are low in calories and a rich source of fiber, they may have beneficial effects on appetite management and help people feel full. In a 2024 study, researchers gave 60 adults with self-reported symptoms of depression a blueberry drink then six weeks of blueberry supplementation or a placebo.
The American Cancer Association suggests that a balanced diet containing whole fruits in a variety of colors may also be beneficial for cancer prevention. Blueberries’ properties may also help to inhibit tumor growth and reduce the risk of cancer recurrence. While both are healthy, wild blueberries may contain more antioxidants than domesticated ones. This amount offers a healthy dose of antioxidants, fiber, and vitamins while minimizing the risk of side effects. Blueberries are considered a superfood due to their dense concentration of nutrients and powerful antioxidants, particularly anthocyanins, which give them their distinctive color. Most nutrition experts and research studies suggest that ½ to 1 cup (75–150g) per day is a sweet spot for health benefits.
- Many species of blueberries grow wild in North America, including Vaccinium myrtilloides, V. angustifolium and V. corymbosum, which grow on forest floors or near swamps.
- Eating blueberries every day can boost your overall health by providing powerful antioxidants, improving heart and brain function, and supporting digestion.
- Yes, Frozen blueberries retain most of their nutrients and antioxidants, especially if they are flash-frozen shortly after harvest.
- People who are taking blood thinners, such as warfarin, must not suddenly change their intake of blueberries or other sources of vitamin K.
Studies have shown ο μπαμπησ αμφιθεασ particular promise in reducing the risk of colorectal cancer, breast cancer, and esophageal cancer. This could include blueberries, although it is important to include a variety of fruits and vegetables in the diet. A type of flavonoid called anthocyanin gives blueberries their characteristic color and contributes to many of their health benefits. Various studies suggest that blueberries can help to protect against heart disease and cancer. People can eat fresh blueberries as a sweet snack or incorporate them into a variety of recipes. They also contain many antioxidants, which may help protect against various diseases.
One older study also compared blueberries, blackberries, and strawberries. Researchers first concluded that all the berries had more antioxidants in their pulp than in their juices. For example, a 2023 study compared the antioxidant content of raspberries, blackberries, blueberries, mulberries, and black chokeberries. While studies haven’t compared the antioxidant content of all berries, there have been some comparisons among select fruits. All berries are considered to be superfoods due to the nutrients and phenolic compounds they contain.