Blueberry

Studies in people

• Benefit

  Pregnancy blood sugar²

  In pregnant women with obesity, eating whole blueberries and soluble fiber led to lower blood sugar and less inflammation.

• Benefit

  Mood and anxiety symptoms³

  In people with depression or anxiety, daily blueberry powder eased symptoms, though scientists don't yet know why.

• Benefit

  Brain blood flow and memory⁴

  In older adults, blueberry concentrate improved blood flow in brain areas tied to memory and thinking.

• Benefit

  Mood and depression risk⁵

  In people, a blueberry drink lifted positive mood but did not change negative mood.

Animal and lab studies only

• Benefit

  Brain health and memory⁷

  In lab and animal studies, blueberry anthocyanins helped nerve cells, but the body absorbs them poorly.

Study type not stated

• Benefit

  Chronic disease prevention⁶

  Blueberry is rich in natural compounds that may help prevent long-term diseases like heart disease and diabetes.

The signal at the top counts the findings in people and in animal and lab studies. A concern in studies of people outranks animal and lab studies, and “No concerns” needs at least two findings in people. Findings whose study type is not stated are shown but not counted. This page is a reference, not medical advice. It describes what regulators and published research say. Talk to a doctor or dietitian about your own diet.