Kombucha and oxidative stress
What 2 graded rows on kombucha agree on for oxidative stress, and where they differ. Counted side by side, never averaged.
Consensus finder Rows from the Kombucha page, reviewed Oct 21, 2026 How it decides
What the rows agree on
Each block and row is one graded row from the Kombucha page, with its PubMed record.
Your question
Kombucha and oxidative stress
2 rows · 122 peopleSplit. 1 row found no difference and 1 had mixed results.
- CGrade C× 2
- Rows
- 2
- Trials
- 2
- People
- 122
What the rows share
From the rowsThe best-graded row, grade C, is a randomized trial of 63 people (2026) and found no difference.
The rows run from 59 to 63 people, published from 2025 to 2026: 2 single studies.
The rows
1 no difference · 1 mixed- CGrade CAntioxidant capacity and immune markers during running training · No difference
RCT · n 63 · 2026 · Healthy beginner runners aged 18-45 in supervised training (Brazil)
200 mL a day · 12 weeks
No change in the primary outcome, plasma antioxidant power (FRAP), or in immune and oxidative responses to a single exercise bout; neutrophils rose and lymphocytes fell with plain kombucha, findings the authors call exploratory after correction for multiple testing.
- CGrade COxidative stress and endothelial markers · Mixed
RCT · n 59 · 2025 · Brazilian adults aged 18-45 with excess weight and no chronic disease
200 mL a day · 10 weeks
Hydrogen peroxide, a pro-oxidant marker, fell vs control (P = 0.007); every other oxidative stress and endothelial marker was unchanged.