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Supplement

Celery seed extract

Celery seed extract is a concentrated preparation from celery seeds, which contain plant compounds thought to help blood vessels relax. The strongest evidence is for blood pressure, where a review of randomized trials found small but consistent reductions, and the evidence is moderate. Improvements in blood sugar were also small, while findings for LDL and HDL cholesterol were modest and the evidence limited.

Sources: PMID 40765738

Best evidence
Grade B
Conditions studied
3
Outcomes
9
Graded outcomes
0320

Evidence by condition

  • Strong
  • Moderate
  • Limited
  • Very limited

3 conditions

High Blood Pressure: outcomes studied for Celery seed extract
GradeOutcomeEffectSizeStudiesPeopleStudies list
Blood Pressure

Small but consistent blood pressure reduction across studies

Improves (the measure goes down)Small effect1 study473 people
Blood glucose

Small Improvement

Improves (the measure goes down)Small effect369 people
High-density lipoprotein (HDL)Improves (the measure goes up)245 people
Low-density lipoprotein (LDL)Changes; see studies282 people
Total cholesterolChanges; see studies383 people
TriglyceridesChanges; see studies245 people

Blood Glucose

Blood Glucose: outcomes studied for Celery seed extract
GradeOutcomeEffectSizeStudiesPeopleStudies list
Blood glucose

Small improvement in blood glucose control

Improves (the measure goes down)Small effect369 people

Cholesterol

Cholesterol: outcomes studied for Celery seed extract
GradeOutcomeEffectSizeStudiesPeopleStudies list
HDL Cholesterol

Modest improvement in HDL

Improves (the measure goes up)Small effect245 people
LDL Cholesterol

Modest reduction in LDL

Improves (the measure goes down)Small effect282 people

Key findings

  • Blood PressureHigh Blood PressureImproves (the measure goes down)
  • Blood glucoseImproves (the measure goes down)
  • HDL CholesterolImproves (the measure goes up)

Shop the evidence-backed picks

Third-party tested Celery seed extract products, in the forms the graded studies used where we can match them.

  • Grade B

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Studies cited

1 study from PubMed

  1. Effects of celery (Apium graveolens) on blood pressure, glycemic and lipid profile in adults: a systematic review and meta-analysis of randomized controlled trials.Front Nutr · PMID 40765738