Herbal Extract
Parsley Extract (Petroselinum crispum)
Also known as: Petroselinum crispum extract, Parsley leaf extract, Parsley stem extract, Garden parsley extract
Parsley extract is a culinary herb traditionally used for digestive support and as a natural diuretic, containing flavonoids and volatile oils. Limited clinical evidence exists for most purported benefits in humans.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Every Parsley Extract (Petroselinum crispum) product we have scored
| # | Product | Score | Per serving |
|---|---|---|---|
| 1 | New Chapter Turmeric Force Detox Action | 73 B+ | $1.57 |
| 2 | Sports Research Garlic Oil Softgels, Plant-Based | 71 B | $0.27 |
Scored on dose accuracy, form, label transparency and third-party testing. Per-serving cost is list price divided by servings per container. No brand pays to be listed or ranked.
Common questions
How much Parsley Extract (Petroselinum crispum) should I take?
The typical range is 500–1500 mg daily (as dried extract powder). Generally safe for long-term use; some traditional protocols limit to 6–8 weeks before a break
When should I take Parsley Extract (Petroselinum crispum)?
With meals or as directed. May be taken with or without food; with food may improve tolerability.
Which form of Parsley Extract (Petroselinum crispum) is best?
Powder extract. Other forms in the catalog: Dried leaf/stem, Tincture, Fresh herb.
Is Parsley Extract (Petroselinum crispum) safe?
Commonly reported: Generally well-tolerated at typical doses, Possible photosensitivity in sensitive individuals, Rare: gastrointestinal upset.
Which Parsley Extract (Petroselinum crispum) supplement scores highest?
New Chapter Turmeric Force Detox Action, at 73/100. Scored on dose accuracy, form, label transparency and third-party testing — no brand pays to be listed or ranked.
Primary uses
- Digestive support
- Diuretic properties
- Antioxidant support
- Anti-inflammatory support
How it works
- Flavonoid and polyphenol content may provide antioxidant effects
- Volatile oils and apiol may support digestive function
- Potassium content may contribute to diuretic properties
Dosage
- Typical range
- 500–1500 mg daily (as dried extract powder)
- Timing
- With meals or as directed
- With food
- May be taken with or without food; with food may improve tolerability
- Duration
- Generally safe for long-term use; some traditional protocols limit to 6–8 weeks before a break
- Special populations
- Pregnant women should avoid supplemental parsley extract due to potential uterotonic effects; nursing mothers should consult a healthcare provider
Forms
- Powder extract· 70/100
- Dried leaf/stem· 70/100
- Tincture· 70/100
- Fresh herb· 70/100
Safety
Common side effects
- Generally well-tolerated at typical doses
- Possible photosensitivity in sensitive individuals
- Rare: gastrointestinal upset
Contraindications
- Pregnancy (especially large doses)
- Kidney disease or renal impairment (diuretic effect)
- Bleeding disorders or concurrent anticoagulant use (contains vitamin K)
- Thyroid conditions (goitrogenic potential at very high doses)
Products containing Parsley Extract (Petroselinum crispum)
Top-scoring supplements in our catalog that list Parsley Extract (Petroselinum crispum) on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Evidence notes
Parsley has a long history of traditional use and contains bioactive compounds (flavonoids, apiol, myristicin). However, human clinical trials are limited. Most evidence is from in vitro, animal studies, or traditional use data rather than controlled human trials.
Grade C: Mostly observational or small trials; mechanism is plausible but unproven at scale.
Related in Herbal Extract
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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.