Safety evaluation and biochemical efficacy of celery seed extract (Apium Graveolens) capsules in hypertensive patients: a randomized, triple-blind, placebo-controlled, cross-over, clinical trial

source extracted confidence: high 2026-04-09
#alanine-transaminase #apium #aspartate-aminotransferases #cross-over-studies #electrolytes

Safety evaluation and biochemical efficacy of celery seed extract (Apium Graveolens) capsules in hypertensive patients: a randomized, triple-blind, placebo-controlled, cross-over, clinical trial

Shayani et al., 2022 | Inflammopharmacology | Rct

Citation

Shayani Rad Maryam, Moohebati Mohsen, ... Mohajeri Seyed Ahmad. Safety evaluation and biochemical efficacy of celery seed extract (Apium Graveolens) capsules in hypertensive patients: a randomized, triple-blind, placebo-controlled, cross-over, clinical trial. Inflammopharmacology. 2022-Oct;30(5):1669-1684. doi:10.1007/s10787-022-00986-0

Abstract

The present study was conducted to evaluate the safety of celery seed extract (Apium graveolens), as a medicinal herb with active ingredients such as 3-n-butylphthalide (NBP), in hypertensive patients. This study was a randomized, triple-blind, placebo-controlled, cross-over clinical trial. Hypertensive patients (51 participants) received 4 celery seed capsules (a total of 1.34 g extract per day) or 4 placebo capsules per day for 4 weeks as a supplement to their usual medication regimen. The results indicated that the celery seed capsule not only was safe for hypertensive patients but also caused a reduction in BP, FBS, and lipid profile values. Also, it had beneficial effects on kidney and liver functions. No significant change was observed in blood cells and serum electrolytes (p > 0.05). The mean reduction in BUN and SCr were 3.43 and 0.075 mg/dL, and in SGPT and SGOT were 4.08 and 3.03 U/L, respectively (p < 0.05). FBS reduced from 108.53 to 97.96 mg/dL after 4 weeks of celery administration (p < 0.01). The decrease in TC, TG, LDL, and increase in HDL were 16.37, 16.22, 11.84, and 2.52 mg/dL, respectively (p < 0.001). According to the promising results of this clinical trial, celery seed extract can be considered a safe supplement for hypertensive patients. The study is limited by the small sample size; therefore, larger randomized trials are required.

Key Findings

The study is limited by the small sample size; therefore, larger randomized trials are required.

Outcomes Measured

  • Requires manual extraction

Population

Field Value
Population See abstract
Sample Size 51
Age Range See abstract
Condition See abstract

MeSH Terms

  • Alanine Transaminase
  • Apium
  • Aspartate Aminotransferases
  • Cross-Over Studies
  • Electrolytes
  • Humans
  • Hypertension
  • Lipids
  • Plant Extracts

Evidence Classification

  • Level: Rct
  • Publication Types: Journal Article, Randomized Controlled Trial
  • Vertical: celery-seed

Provenance

Source extracted via PubMed E-utilities API on 2026-04-12