Key Takeaways
- Celery seed may help lower blood pressure, reduce water retention, and manage blood sugar levels, although research is limited for most benefits.
- Celery seed supplements come in many forms, including powder, tablets, and capsules.
- Celery seed is also widely used as a seasoning due to its savory, earthy flavor.
While early studies are promising, more research is needed before celery seed can be recommended as a treatment for most health conditions. You can include celery seed in your diet as a seasoning or take supplements.
1. May Help Lower Blood Pressure
Some small studies suggest celery seed extract may modestly lower high blood pressure. In one trial, 1.34 grams (g) daily for four weeks reduced both systolic and diastolic readings.
Note: Celery seed is not a substitute for medical treatment. Uncontrolled high blood pressure increases the risk of heart, kidney, and brain disease. Please speak with your healthcare provider about managing your blood pressure.
2. May Improve Sexual Dysfunction in Women
In a study of 80 women with sexual dysfunction, 500 milligrams (mg) of celery seed taken three times daily for six weeks improved sexual function scores compared to a placebo. Further study is needed to confirm these results.
3. May Help Reduce Water Retention
A few limited studies have suggested that both celery root and celery seed extract have diuretic effects (to rid the body of excess water). The diuretic effect has been credited (in part) with helping to reduce blood pressure in some people.
4. May Help Reduce Cholesterol
A 2025 research review found doses over 1,000 mg/day of celery seed or related preparations may improve lipid profiles, particularly in people with hyperlipidemia.
5. May Help Manage Type 2 Diabetes
Celery seed lowered blood sugar and increased serum insulin levels in animal studies, suggesting anti-diabetic potential. However, research in humans before recommendations may be made.
6. May Provide Antioxidant Benefits
Celery seeds contain antioxidants, including flavonoids such as luteolin, which may help neutralize free radicals and reduce oxidative stress. Most studies in humans are needed.
7. May Boost Bone Health
Some people take celery seeds to boost bone health due to the calcium, phosphorus, and magnesium that they contain. However, a tablespoon of the seeds provides less than 10% of the daily value (DV) of each mineral. While supportive, it’s unlikely to play a significant role in bone formation when consumed in moderate amounts.
8. May Help Treat Liver Disease
Preliminary lab studies have suggested that celery seeds contain properties that may help treat liver fibrosis. However, more studies are needed in humans.
9. May Help Relieve Gout
Rodent studies suggested that celery seeds’ anti-inflammatory and antioxidant effects may help relieve gout, a painful form of arthritis caused by uric acid build-up. High-quality human studies are needed to understand this benefit.
10. May Have Antimicrobial Effects
Limited studies have suggested that celery seed extracts have antimicrobial effects against bacteria, yeast, and mold. Study authors conclude that celery seed oil may be used as an alternative natural food preservative due to its beneficial properties. However, further research is still needed.
11. May Help Protect the Gut
Limited animal research has suggested that an active component of celery seed, called luteolin, may help reduce colonic ulcers. However, clinical trials in humans are needed.
Is Celery Seed Safe for Me to Take?
Celery seed is generally safe in the small amounts typically used in food for most people.
Avoid use if you:
- Are allergic to it, its components (parts), or related plants in the Apiaceae family.
- During pregnancy, breastfeeding, and in children (large quantities).
- Have kidney conditions.
- Take blood pressure or diabetes medications.
Side Effects to Watch For
Reported side effects include, but are not limited to:
- Decreased appetite
- Increased urination
- Hyperthyroidism (overactive thyroid) with very high amounts used for a prolonged period.
Anaphylaxis is a rare, serious risk associated with the use of celery.
- Seek immediate medical attention if you have a severe allergic reaction (hives, swelling of the face, breathing difficulty, irregular heartbeat).
How Do You Use Celery Seed?
Fresh celery seed can be used to flavor food, as it is known to have a distinct, earthy flavor and pungent taste.
- Celery seed is available in various forms, including extracts, powder, or whole seeds, and in capsules and tablets.
- Essential oils are also available; however, avoid ingesting them by mouth.
- Celery plant parts, including leaves, stems, and roots, may also be consumed.
How Much Celery Seed Should I Take?
Celery seed dosages may vary depending on your condition and any medications or supplements you are taking. Clinical trials have used the following amounts:
- High blood pressure: 1.34 g daily for four weeks. Avoid ingesting large amounts of celery seed unless under the guidance of your healthcare provider.
- Sexual dysfunction in females: 500 mg of celery seed three times a day for six weeks.
- Hyperlipidemia: 1,000 mg per day.
These dosages don’t replace medical advice. Avoid delaying treatment for serious conditions; consult your healthcare provider if you have any concerns.
In the United States, the Food and Drug Administration (FDA) regulates dietary supplements differently than it regulates prescription medications. As a result, some supplement products may not contain the ingredients listed on the label.
When choosing a supplement, look for products that have been independently tested or certified by reputable organizations such as NSF, U.S. Pharmacopeia, or ConsumerLab.com.
For personalized guidance, consult your healthcare provider, RD or RDN, or pharmacist.
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