Fucoxanthin and cognition

What 2 graded rows on fucoxanthin agree on for cognition, and where they differ. Counted side by side, never averaged.

Consensus finder Rows from the Fucoxanthin page, reviewed Oct 21, 2026 How it decides

What the rows agree on

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

Supplement

Fucoxanthin Choose another

2 rows · 109 people

Split. 1 row found no difference and 1 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.

From the rows

The best-graded row, grade D, is a randomized trial of 66 people (2025) and found no difference.

The rows run from 43 to 66 people, published from 2024 to 2025: 2 single studies.

1 no difference · 1 mixed

Grade DMemory and inflammation in older adults with age-associated memory impairment · No difference
RCT · n 66 · 2025 · Healthy adults aged 55–75 with age-associated memory impairment
550 mg/day extract (4.4 mg fucoxanthin) · 24 weeks
No between-group difference in the primary memory score or other cognitive tests at 12 or 24 weeks. hs-CRP fell from 3.9 to 2.1 mg/L versus placebo (p = 0.002); no safety concerns.
Row on the Fucoxanthin page · PubMed 40370669 (opens PubMed)
Grade DMemory and attention in older adults with self-perceived decline · Mixed
RCT · n 43 · 2024 · Physically active adults aged about 64 with perceived memory decline
1,100 mg/day extract (8.8 mg fucoxanthin) · 12 weeks
Some memory, attention and reaction-time measures improved or trended better, but most differences were over time rather than between groups. No negative effects on blood panels.
Row on the Fucoxanthin page · PubMed 39275314 (opens PubMed)