Black chokeberry (aronia) and cognition

What 2 graded rows on black chokeberry (aronia) agree on for cognition, and where they differ. Counted side by side, never averaged.

Consensus finder Rows from the Black chokeberry (aronia) page, reviewed Oct 21, 2026 How it decides

What the rows agree on

Each block and row is one graded row from the Black chokeberry (aronia) page, with its PubMed record.

Supplement

Black chokeberry (aronia) Choose another

2 rows · 131 people

Inconsistent: both rows reported mixed results.

Mixed

Improved

Each block is one evidence row, sized by how many people it enrolled, with its grade inside. Outlined: mixed results.

From the rows

The best-graded row, grade C, is a randomized trial of 101 people (2020) and reported mixed results.

Each row reported mixed results on its own, so there is no side to compare. The rows enrolled 30 to 101 people and were published from 2020 to 2026.

2 mixed

Grade CCognitive performance and mood · Mixed
RCT · n 101 · 2020 · Healthy, middle-aged overweight adults
90 or 150 mg/day · 24 weeks
90 mg improved psychomotor speed versus placebo (p = 0.009). Attention, cognitive flexibility, BDNF and other vascular measures did not change; 150 mg lowered diastolic pressure only compared with 90 mg, not with placebo.
Row on the Black chokeberry (aronia) page · PubMed 32824483 (opens PubMed)
Grade CExecutive function and brain blood flow in older adults · Mixed
Crossover RCT · n 30 · 2026 · Healthy older adults (mean age 65) with overweight or obesity
Extract providing 40 mg anthocyanins/day · 6 weeks per period
Spatial working memory errors fell 20% versus placebo (p = 0.006). Memory, psychomotor speed, cerebral blood flow in predefined brain regions and peripheral vascular function did not change; blood flow fell in one insular-cortex cluster, of unclear relevance.
Row on the Black chokeberry (aronia) page · PubMed 41499921 (opens PubMed)