Resistant Starch and blood sugar
What 2 graded rows on resistant starch agree on for blood sugar, and where they differ. Counted side by side, never averaged.
Consensus finder Rows from the Resistant Starch page, reviewed Oct 21, 2026 How it decides
What the rows agree on
Each block and row is one graded row from the Resistant Starch page, with its PubMed record.
Your question
Resistant Starch and blood sugar
2 rows · 1,050 peopleSplit. 1 row found an improvement and 1 found no difference.
- CGrade C× 2
- Rows
- 2
- Trials
- 2
- At least: a review without a trial count
- People
- 1,050
- Pooled reviews may count some twice
Where they differ
From the rowsThe best-graded row, grade C, is a meta-analysis of 982 people (2023) and found an improvement.
The row that found an improvement was larger: 982 people, against 68 people for the row that found no difference.
The row that found an improvement is a pooled review of several trials; the row that found no difference is a single study.
The row that found an improvement is newer (2023) than the row that found no difference (2018).
The rows
1 improved · 1 no difference- CGrade CFasting and post-meal glucose in type 2 diabetes and prediabetes · Improved
Meta-analysis · n 982 · 2023 · Adults with type 2 diabetes or prediabetes (36 RCTs, 31 pooled)
Varied by trial · Single meals and longer-term trials
In longer trials, RS2 lowered fasting glucose (SMD −0.39, 95% CI −0.66 to −0.13), fasting insulin (SMD −0.40) and post-meal glucose (SMD −0.29); RS1 also lowered post-meal glucose. RS2 lowered post-meal glucose and insulin after single meals.
Row on the Resistant Starch page · PubMed 37051127 (opens PubMed)
- CGrade CGlucose control and cardiometabolic risk factors in prediabetes · No difference
RCT · n 68 · 2018 · Adults aged 35 to 75 with prediabetes and BMI of 27 or more (US)
45 g per day · 12 weeks
HbA1c fell by a clinically insignificant 0.1% (P = 0.05); insulin secretion, insulin sensitivity and glucose curves were unchanged. Heart rate and TNF-alpha fell; ectopic fat and other risk factors did not change.
Row on the Resistant Starch page · PubMed 30010698 (opens PubMed)