Saw Palmetto; Health Benefits, How to Use & Side Effects (2025)

Saw palmetto is a medicinal plant of the Serenoa repens species. Itproduces small, dark blue berriessimilar to blackberries, which contain anti-inflammatory, diuretic and antiandrogenic properties. Therefore, saw palmetto can be used as a home remedy for impotence, urinary problems or an enlarged prostate.

This medicinal plant can be used in the form of tea, capsules or lotion, which areprepared from the dried extract of saw palmetto berries. Theyare available for purchase insomehealth food stores and pharmacies.

Sal palmetto should always be taken as approbed by a doctor or medicinal plant specialist.

This content is solely for informative purposes and should not replace a medical consultation. Do not interrupt your current treatment without seeking medical guidance.

Saw Palmetto; Health Benefits, How to Use & Side Effects (1)

Health benefits

Saw palmetto can be used for:

1. Managingprostate cancer

Saw palmetto has anti-inflammatory properties that reduce prostate swelling. Itcan help relieve urinary symptoms associated with benign prostate tumors, such as difficulty urinating or urinary frequency. It also promotes normal hormone levels, whichcanimproving quality of life and sexual function.

In addition, this plant acts by blocking some hormonal processes that prevent the growth of prostate cells, which can play a role in preventing thedevelopment and progression of prostate cancer. Check-out other natural remedies for an enlarged prostate that can help to prevent the development of cancer.

2. Preventing hair loss

Saw palmetto promotes hair health, and can increase hair growth and volume. It can be beneficialfor people who suffer from baldness, as this medicinal plant acts by balancing hormones that help reduce hair loss.

3. Improving libido in men

This medicinal plant helps to regulate testosterone levels in men, which can improve muscle endurance and boostlibido and sperm count. Therefore, it can be taken to promote fertility.

4. Relievingurinary symptoms

Saw palmetto acts on the receptors and nerves in the bladder, which can helping to relieve urinary symptoms likedifficulty holdingurine and urinary frequency.

5. Reducingpain

Because it contains anti-inflammatory properties, saw palmetto also helps to reduce irritation and sore throat, as well as treat coughing and headaches.

How to use

The part of saw palmetto that is normally used for medicinal purposes is its berries. The berries contain active substances, which can be extracted andconsumed in the form of powdered tea,capsules, and skin lotion.

The main ways to use saw palmetto are:

  • Saw palmetto in capsules: take one160 mg capsule, twice a day, after breakfast and dinner
  • Saw palmetto tea: add 1 tablespoon of saw palmetto powder to 1 glass of water. Mix until the powder is completely dissolved and drink twice a day.
  • Skin lotion: after washing and drying your hair, apply to the scalp in areas where hair loss is occurring. Massage the scalp for 2 to 3 minutes, pressing gently and making circular movements with your fingers. Saw palmetto lotion can also be applied to the skin to treat eczema.

The duration and dosing of saw palmetto may vary depending on your doctor's advice.

Possible side effects

Saw palmetto is a safe for consumption for most adults, as long as it is consumed orally in capsule or tea form within the suggested doses, forno longer than 3 years. However, it can cause some mild side effects, including dizziness, headache, stomach pain, nausea, vomiting, a bitter taste in the mouth, constipation or diarrhea.

Saw palmetto can delay blood clotting, so its use should be discontinued 2 weeks prior to any surgery to prevent excessive bleeding or hemorrhaging.

Contraindications for use

Saw palmetto should not be used by children, pregnant women or breastfeeding women. It is also contraindicated for people with clotting conditions (like hemophilia), liver diseases (likeliver failure), or pancreatic problems (likepancreatitis).

This medicinal plant should also not be used by people who use anticoagulants such as warfarin, acetylsalicylic acid or clopidogrel or who takeother medicinal plants or supplements that can affect blood clotting such as ginger, ginkgo biloba, ginseng, horse chestnut, turmeric, willow, clove, red clover or vitamin E.

Clinical review: Manuel Reis Registered Nurse Postgraduate degree in Medicinal Plant Therapy, and Nursing degree obtained through the Porto Nursing School. Licensed to practice with the Ordem dos Enfermeiros (PT) under license #79026.
Update History

We regularly update our content with the latest scientific information to maintain an exceptional level of quality.

  • 9 August, 2024 (Current version)

    Clinical review by Manuel Reis - Registered Nurse

    Updated by Daisy Oliveira - Registered Nurse

  • Published in August, 2024

References
  • GORDON, Andrea E.; SHAUGHNESSY, Allen F. Saw palmetto for prostate disorders. Am Fam Physician. 67. 6; 1281-3, 2003
  • AGBABIAKA, T. B.; et al. Serenoa repens (saw palmetto): a systematic review of adverse events. Drug Saf. 32. 8; 637-47, 2009
  • EVRON, E.; et al. Natural Hair Supplement: Friend or Foe? Saw Palmetto, a Systematic Review in Alopecia. Skin Appendage Disord. 6. 6; 329-337, 2020
  • AVINS, A. L.; BENT, S. Saw palmetto and lower urinary tract symptoms: what is the latest evidence?. Curr Urol Rep. 7. 4; 260-5, 2006
  • UPTODATE. Clinical use of saw palmetto. 2020. Available on: <https://www.uptodate.com/contents/clinical-use-of-saw-palmetto>. Access in 07 May 2021
  • KWON, Y. Use of saw palmetto (Serenoa repens) extract for benign prostatic hyperplasia. Food Sci Biotechnol. 28. 6; 1599-1606, 2019
  • KATZ, Aaron E. Flavonoid and Botanical Approaches to Prostate Health. The Journal of Alternative and Complementary Medicine. 8. 6; 813–821, 2002
  • DRUGS.COM. Saw Palmetto. Available on: <https://www.drugs.com/mtm/saw-palmetto.html>. Access in 07 May 2021
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