Rutin and blood sugar
What 3 graded rows on rutin agree on for blood sugar, and where they differ. Counted side by side, never averaged.
Consensus finder Rows from the Rutin page, reviewed Oct 21, 2026 How it decides
What the rows agree on
Each block and row is one graded row from the Rutin page, with its PubMed record.
Your question
Rutin and blood sugar
3 rows · 181 peopleMostly no difference: 2 of 3 rows, and most of the people. 1 found an improvement.
- DGrade D× 3
- Rows
- 3
- Trials
- 3
- People
- 181
Where they differ
From the rowsThe best-graded row, grade D, is a randomized trial of 78 people (2023) and found no difference.
The row that found an improvement ran longer (3 months) than the 2 rows that found no difference (8 weeks to 3 months).
The rows
1 improved · 2 no difference- DGrade DInsulin-producing (beta-cell) function and gut bacteria in overweight adults without diabetes · No difference
RCT · n 78 · 2023 · Adults aged 18–65 with overweight and normal glucose or prediabetes (New Zealand)
500 mg/day · 12 weeks
Neither rutin capsules nor rutin yoghurt changed beta-cell response to an oral glucose tolerance test or gut bacterial composition versus placebo.
- DGrade DGlycemic control with rutin plus vitamin C in type 2 diabetes · No difference
RCT · n 53 · 2020 · Adults with type 2 diabetes (registered trial NCT03437902)
Not stated in the abstract · 8 weeks
The percentage fall in fasting glucose was larger with vitamin C, with or without rutin, than with usual treatment alone; HbA1c, insulin, HOMA-IR, total cholesterol and oxidative-stress markers did not change. The abstract reports no advantage of the rutin combination over vitamin C alone.
- DGrade DBlood sugar, insulin resistance and lipids in type 2 diabetes · Improved
RCT · n 50 · 2023 · Adults with type 2 diabetes
500 mg/day · 3 months
In the adjusted analysis, fasting glucose, insulin, HbA1c, HOMA-IR, LDL and total cholesterol, IL-6 and malondialdehyde fell more, and HDL, QUICKI and total antioxidant capacity rose more, than with placebo.