Berberine (vs dihydroberberine) and blood sugar
What 2 graded rows on berberine (vs dihydroberberine) agree on for blood sugar, and where they differ. Counted side by side, never averaged.
Consensus finder Rows from the Berberine (vs dihydroberberine) page, reviewed Oct 21, 2026 How it decides
What the rows agree on
Each block and row is one graded row from the Berberine (vs dihydroberberine) page, with its PubMed record.
Your question
Berberine (vs dihydroberberine) and blood sugar
2 rows · 1,527 peopleThey agree: both rows found an improvement.
- AGrade A× 1
- DGrade D× 1
- Rows
- 2
- Trials
- 19
- People
- 1,527
- Pooled reviews may count some twice
What the rows share
From the rowsThe best-graded row, grade A, is a meta-analysis of 1,522 people (2023) and found an improvement.
The rows run from 5 to 1,522 people, published from 2021 to 2023: 1 pooled review and 1 single study.
The rows
2 improved- AGrade AFasting glucose and HbA1c · Improved
Meta-analysis, 18 studies · n 1,522 · 2023 · 18 placebo-controlled RCTs reporting fasting glucose (20 trials, n=1,761 overall), adults with and without diabetes
Varied across trials · Varied across trials
Fasting glucose fell 0.52 mmol/L (about 9 mg/dL) versus placebo; HbA1c fell 4.48 mmol/mol (about 0.4 percentage points; 7 trials, n=756) and HOMA-IR insulin resistance 0.85. Reductions in fasting glucose were larger in people with diabetes and in Asian populations, and possibly in women.
Row on the Berberine (vs dihydroberberine) page · PubMed 37598753 (opens PubMed)
- DGrade DBlood berberine levels: dihydroberberine vs berberine · Improved
Crossover RCT · n 5 · 2021 · Healthy young men
4 doses over about 24 hours of each product · Single-day crossover conditions
Dihydroberberine 100 mg produced higher peak plasma berberine (3.76 vs 0.4 ng/mL) and area under the curve than berberine 500 mg. No differences in glucose or insulin responses.
Row on the Berberine (vs dihydroberberine) page · PubMed 35010998 (opens PubMed)