Rhamnogalacturonan-I (carrot RG-I) and gut microbiota

What 2 graded rows on rhamnogalacturonan-i (carrot rg-i) agree on for gut microbiota, 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 Rhamnogalacturonan-I (carrot RG-I) page, with its PubMed record.

Your question

Supplement
Rhamnogalacturonan-I (carrot RG-I) Choose another

Rhamnogalacturonan-I (carrot RG-I) and gut microbiota

2 rows · 200 people

Split. 1 row found an improvement and 1 had mixed results.

Mixed
Improved
Each block is one evidence row, sized by how many people it enrolled, with its grade inside. Outlined: mixed results.
  • Grade D× 2
Rows
2
Trials
2
People
200

What the rows share

From the rows

The best-graded row, grade D, is a randomized trial of 146 people (2024) and reported mixed results.

The rows run from 54 to 146 people, published from 2024 to 2025: 2 single studies.

The rows

1 improved · 1 mixed
  1. Grade DFaecal Bifidobacterium, immune cell activation and stool consistency · Improved

    RCT · n 54 · 2025 · Healthy adults aged 18–70 (Sweden)

    500 mg/day · 4 weeks

    Faecal Bifidobacterium rose, peaking at week 3; isobutyric acid rose but other short-chain fatty acids did not; more circulating dendritic cells carried activation markers; stool consistency improved slightly.

    Row on the Rhamnogalacturonan-I (carrot RG-I) page · PubMed 41011488 (opens PubMed)

  2. Grade DGut microbiota composition (same challenge trial) · Mixed

    RCT · n 146 · 2024 · Healthy adults in the rhinovirus challenge trial (placebo 46, 0.3 g/day 49, 1.5 g/day 51)

    0.3 g/day or 1.5 g/day · 8 weeks

    Overall microbiota composition did not change, but Bifidobacterium (mainly B. adolescentis and B. longum) increased at both doses, and microbiota became more stable. Symptom severity did not correlate directly with the microbial changes.

    Row on the Rhamnogalacturonan-I (carrot RG-I) page · PubMed 38593705 (opens PubMed)

Educational only. Not medical advice. Some links earn us a commission: kymatahealth.com/affiliate-disclosure.