Wild celery extract (celery seed) and blood pressure

What 2 graded rows on wild celery extract (celery seed) agree on for blood pressure, 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 Wild celery extract (celery seed) page, with its PubMed record.

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Wild celery extract (celery seed) and blood pressure

2 rows · 563 people

They agree: both rows found an improvement.

No difference
Improved
Each block is one evidence row, sized by how many people it enrolled, with its grade inside.
  • Grade C× 1
  • Grade D× 1
Rows
2
Trials
11
People
563
Pooled reviews may count some twice

What the rows share

From the rows

The best-graded row, grade C, is a meta-analysis of 511 people (2025) and found an improvement.

The rows run from 52 to 511 people, published from 2022 to 2025: 1 pooled review and 1 single study.

The rows

2 improved
  1. Grade CBlood pressure, fasting glucose and lipids · Improved

    Meta-analysis, 10 studies · n 511 · 2025 · Adults in 10 randomised trials

    Varied (seed preparations above 1,000 mg/day did best) · Varied

    Systolic BP (SMD −1.0), diastolic BP (SMD −0.93), fasting glucose (SMD −0.80) and triglycerides (SMD −1.18) fell; total, LDL and HDL cholesterol did not change; adverse events did not differ from placebo.

    Row on the Wild celery extract (celery seed) page · PubMed 40765738 (opens PubMed)

  2. Grade D24-hour ambulatory blood pressure in hypertension · Improved

    Crossover RCT · n 52 · 2022 · Adults with hypertension on usual medication (Iran)

    1.34 g/day (4 capsules) · 4 weeks per period

    Systolic BP fell from 141.2 to 130.0 mmHg and diastolic from 92.2 to 84.2 mmHg with celery, with no significant change on placebo; no excess side effects.

    Row on the Wild celery extract (celery seed) page · PubMed 35624525 (opens PubMed)

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