Kanna and stress
What 2 graded rows on kanna agree on for stress, and where they differ. Counted side by side, never averaged.
Consensus finder Rows from the Kanna page, reviewed Oct 21, 2026 How it decides
What the rows agree on
Each block and row is one graded row from the Kanna page, with its PubMed record.
Your question
Kanna and stress
2 rows · 36 peopleSplit. 1 row found an improvement and 1 had mixed results.
- DGrade D× 2
- Rows
- 2
- Trials
- 2
- People
- 36
What the rows share
From the rowsThe best-graded row, grade D, is a randomized trial of 20 people (2020) and reported mixed results.
The rows run from 16 to 20 people, published from 2013 to 2020: 2 single studies.
The rows
1 improved · 1 mixed- DGrade DAmygdala reactivity to fearful faces (fMRI) · Improved
Crossover RCT · n 16 · 2013 · Healthy adults (Netherlands)
25 mg, single dose · Single dose
Amygdala reactivity to fearful faces under low perceptual load was reduced, and amygdala–hypothalamus coupling fell during emotion matching.
- DGrade DAnxiety and mood during laboratory stress tasks · Mixed
RCT · n 20 · 2020 · Young healthy volunteers (UK)
25 mg, single dose · Single dose
No treatment effect in the multitasking study. In the public-speaking study, subjective anxiety was lower before the stressor and heart rate response differed versus placebo.