Fucoidan and exercise

What 3 graded rows on fucoidan agree on for exercise, 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 Fucoidan page, with its PubMed record.

Your question

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Fucoidan and exercise

3 rows · 48 people

Split. 1 row found no difference and 2 had mixed results.

No difference or mixed
Improved
Each block is one evidence row, sized by how many people it enrolled, with its grade inside. Outlined: mixed results.
  • Grade D× 3
Rows
3
Trials
3
People
48

What the rows share

From the rows

The best-graded row, grade D, is a randomized trial of 20 people (2025) and reported mixed results.

The rows run from 12 to 20 people, published from 2023 to 2025: 3 single studies.

The rows

1 no difference · 2 mixed
  1. Grade DInflammation and performance after high-intensity exercise · No difference

    Crossover RCT · n 16 · 2023 · 8 men and 8 women

    1 g a day · 2 weeks per arm

    Sprint peak and mean power did not change; IL-6 and IL-10 were higher 30 minutes after exercise with fucoidan, and other blood markers did not differ. No adverse events.

    Row on the Fucoidan page · PubMed 37331983 (opens PubMed)

  2. Grade DStrength and body composition during resistance training · Mixed

    RCT · n 20 · 2025 · Healthy adults (9 men, 11 women) starting a 6-week resistance training programme

    1 g a day · 6 weeks

    Back-squat strength rose in both groups with no treatment effect (p = 0.48); Wingate peak power rose in the fucoidan group only, and lean mass rose and body fat fell with fucoidan (treatment effect p < 0.05).

    Row on the Fucoidan page · PubMed 41249370 (opens PubMed)

  3. Grade DMucosal immunity during intensified training · Mixed

    Crossover RCT · n 12 · 2023 · 12 recreationally active men

    1 g a day · 3 weeks per arm

    Training gains (16-19% mean power) did not differ; resting faecal and salivary markers were stable, but the salivary IgA response to exercise was about 2.7-fold higher (p = 0.02).

    Row on the Fucoidan page · PubMed 38247026 (opens PubMed)

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