Celery Seed Extract for Health & Longevity - Quick Reference Sheet
evipedia.ai
← Back

Celery Seed Extract for Health & Longevity

Created on 08/25/2026 – Quick Reference based on Evidence Review created using AI4L / Opus 5 – Audit

Concentrated celery seed, standardized to an oily aroma compound that relaxes blood vessels. The most consistent finding is a meaningful fall in blood pressure in people whose pressure is already high. Smaller signals point to lower blood fats, blood sugar, uric acid, and better mood scores. The evidence base is small and often industry-funded; celery is a major allergen. (Full Review)

Protocol

Standard supplement protocol
150–1,500 mg/day
Seed extract standardized to 3nB; the pooled analysis favoured a 1,000 mg threshold
Split dosing
2–4 doses daily
Trials gave four capsules across the day; once-daily dosing wastes coverage
Best time of day
With food, morning and early evening
Food improves absorption of the oily phthalides; a late dose increases night-time urination
Time to effect
Blood pressure
3–6 weeks
Changes appeared by three weeks and were established by four to six weeks
Triglycerides
4–12 weeks
Measured at four to twelve weeks; a month is the earliest readable point
Uric acid
4–12 weeks
Measured at four to twelve weeks; the fall at 150 mg/day was recorded over 12 weeks

Benefits

Contraindications
  • Known celery, mugwort, birch, or Apiaceae-family allergy (carrot, parsley, fennel, anise, caraway, coriander), including oral allergy syndrome
  • Pregnancy at any stage, or planning pregnancy within the next cycle
  • Breastfeeding
  • Bleeding disorder or therapeutic anticoagulation without physician supervision
  • Active kidney inflammation (nephritis) or estimated glomerular filtration rate below 60 mL/min/1.73 m²
  • Untreated or unstable thyroid disease (thyroid-stimulating hormone outside 0.4 to 4.0 mIU/L)
  • Symptomatic blood pressure drops on standing (orthostatic hypotension) or systolic pressure below 110 mmHg
  • Within two weeks of scheduled surgery
  • Light therapy with psoralen drugs plus ultraviolet A
    •
Key Interactions
  • Antihypertensive drugs (amlodipine, lisinopril, losartan, hydrochlorothiazide)
  • Lithium
  • Levothyroxine
  • Anticoagulants and antiplatelet drugs (warfarin, apixaban, clopidogrel, aspirin)
  • CYP1A2 substrates (theophylline, tizanidine, clozapine, caffeine)
  • Venlafaxine and other serotonergic agents
  • Photosensitizing drugs (doxycycline, amiodarone, psoralen light therapy)
  • Uric-acid-lowering drugs (allopurinol, febuxostat)
  • Blood-pressure-lowering supplements (beetroot nitrate, garlic extract, magnesium, omega-3, hibiscus)
  • Diuretic herbs and caffeine
    •

Risk & Side Effects

  • High: Allergic reactions and anaphylaxis
    •
  • Medium: Additive blood pressure lowering and hypotension
    •
  • Low: Sunlight-triggered skin rash; reduced male fertility with chronic high-dose use; thyroid disturbance; diuresis and urinary frequency
    •
  • Speculative: Bleeding risk with anticoagulants; uterine stimulation and pregnancy loss; mania in psychiatrically susceptible users
    •

Monitoring

Marker Target Why
Systolic / diastolic blood pressure 110–125 / 70–80 mmHg Primary efficacy and primary safety endpoint
Serum uric acid 3.5–5.5 mg/dL Tracks the xanthine oxidase effect
Triglycerides < 80 mg/dL The lipid fraction that responds most consistently
LDL cholesterol < 100 mg/dL, lower with risk factors Detects whether the inconsistent cholesterol signal applies individually
Fasting glucose 75–86 mg/dL Tracks the modest glycaemic effect
Thyroid-stimulating hormone 0.5–2.5 mIU/L Screens for the reported hyperthyroidism signal
Estimated glomerular filtration rate > 90 mL/min/1.73 m² Confirms diuresis is not straining the kidneys
Sodium and potassium 136–142 and 4.0–4.5 mmol/L Detects electrolyte shift from the diuretic action
ALT and AST 10–26 U/L Routine safety for any concentrated botanical

Cadence: Home blood pressure daily for the first four weeks, then weekly; full blood panel at 12 weeks, then every six to twelve months while use continues.

Qualitative Assessment

  • Light-headedness on standing, the earliest sign of excessive blood pressure lowering
  • Night-time urination frequency, which indicates dose timing needs adjusting
  • Any oral itching, lip tingling, or throat tightness after a dose, which requires immediate discontinuation
  • Joint stiffness and morning pain, if joint symptoms are the reason for use
  • Energy, sleep quality, and general anxiety level, the domains where symptom scores improved in trials
  • Skin reaction to sun exposure, particularly in the first month
Not medical advice. Educational distillation of a single evidence review. Confirm any decision with a qualified clinician, especially in the presence of prescription drugs or chronic conditions.