Blueberry extract
Blueberry extract is made from wild lowbush blueberries, prized for their rich content of biologically active compounds. One of the most important is anthocyanins – plant pigments from the flavonoid family known for their strong antioxidant and physiological effects, which help protect various systems in the body. Blueberry extract is associated with benefits for vision, circulation, and protecting cells from oxidative stress.

What are the benefits of blueberry extract?
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Acts as a strong antioxidant, protecting cells from oxidative stress
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Improves vision and reduces eye fatigue
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Strengthens capillary walls and improves blood circulation
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Helps maintain normal glucose metabolism
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Contributes to strengthening the immune system
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May support brain function and memory
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May help maintain healthy blood sugar levels
Possible symptoms of blueberry extract deficiency
Blueberry extract isn't an essential nutrient the way vitamins or minerals are, so there's no direct "deficiency" with specific symptoms. That said, a diet consistently low in the antioxidants found in blueberry extract may contribute to certain issues over time:
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Increased fatigue and weakness linked to cellular oxidative stress
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Impaired night vision or eye fatigue
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A weaker immune system
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Impaired memory
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Slower recovery after physical exertion or emotional stress
Natural sources of blueberry extract
Blueberry extract comes from blueberries that grow wild in forests and boggy areas, or are cultivated on farms. As a supplement, it's available in capsules, tablets, powders, or liquid form (drops or syrup).
Recommended blueberry extract dosage
The typical daily dose of blueberry extract ranges from 80 mg to 160 mg, depending on the manufacturer and concentration. Higher amounts are sometimes used for specific health goals. The right dose should be determined individually, in consultation with a doctor or pharmacist.
Possible side effects of blueberry extract and interactions with medications
Blueberry extract is generally well tolerated, though some people may experience mild digestive upset or allergic reactions. Taking large amounts, or combining it with blood-thinning medication, may increase the risk of bleeding. Before starting any supplement, it's recommended to talk to a doctor or pharmacist.

