Resistant Starch and metabolic health

What 2 graded rows on resistant starch agree on for metabolic health, and where they differ. Counted side by side, never averaged.

What the rows agree on

Each block and row is one graded row from the Resistant Starch page, with its PubMed record.

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Resistant Starch and metabolic health

2 rows · 1,743 people

Inconsistent: both rows reported mixed results.

Improved
Each block is one evidence row, sized by how many people it enrolled, with its grade inside. Outlined: mixed results.
  • Grade C× 2
Rows
2
Trials
2
At least: a review without a trial count
People
1,743
Pooled reviews may count some twice

What the rows share

From the rows

The best-graded row, grade C, is a meta-analysis of 1,073 people (2025) and reported mixed results.

Each row reported mixed results on its own, so there is no side to compare. The rows enrolled 670 to 1,073 people and were published from 2019 to 2025.

The rows

2 mixed
  1. Grade CBody measures, glucose and lipids in metabolic syndrome risk · Mixed

    Meta-analysis · n 1,073 · 2025 · Adults with overweight, obesity, prediabetes, type 2 diabetes, high cholesterol, fatty liver or metabolic syndrome (23 RCTs, 19 pooled)

    6–40 g a day, varied by trial · 4–16 weeks

    Total cholesterol −0.20 mmol/L, LDL −0.11 mmol/L and hip circumference −1.83 cm versus control; fasting glucose did not change (MD 0.02 mmol/L, 16 trials). Waist, fasting insulin, HOMA-IR and TNF-alpha fell but with high heterogeneity.

    Row on the Resistant Starch page · PubMed 41080169 (opens PubMed)

  2. Grade CWeight, glucose and blood lipids · Mixed

    Meta-analysis · n 670 · 2019 · Healthy adults and people with overweight, metabolic syndrome, prediabetes or type 2 diabetes (22 RCTs)

    At least 8 g per day · 1 to 12 weeks

    RS2 lowered triglycerides slightly in healthy people (-0.10 mmol/L) and body weight in people with type 2 diabetes (-1.29 kg), but these results leaned on a few small studies; there was no effect on any other metabolic outcome.

    Row on the Resistant Starch page · PubMed 31398841 (opens PubMed)

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