Chasteberry

Common Names: chasteberry, chaste tree, gattilier, monk's pepper, vitex
Latin Names: Vitex agnus-castus
Background
- The chasteberry plant, also called chaste tree or shrub, is native to the Mediterranean and Central Asia regions. Extracts of chasteberry may be prepared from the herb’s leaves, stems, flowers, and seeds.
- The name “chasteberry” may reflect the traditional belief that the plant promoted chastity. In the Middle Ages, chasteberry was reportedly used by monks to decrease sexual desire. Chasteberry was also traditionally used for psychological illnesses, gynecological disorders, and hormone-associated skin conditions.
- Today, chasteberry is promoted as a dietary supplement for symptoms of premenstrual syndrome (PMS), breast pain or tenderness associated with the menstrual cycle, infertility, menopause symptoms, and other conditions.
How Much Do We Know?
- Several studies of low-to-moderate quality in people have evaluated chasteberry for alleviating PMS symptoms such as breast pain or tenderness. There isn’t a lot of strong research on the effectiveness of chasteberry for other conditions.
- Much research has been conducted on the safety of this herb and has determined that chasteberry supplementation may not be safe for women with hormone-sensitive conditions, such as breast, uterine, or ovarian cancer. Some preclinical evidence states that the use of chasteberry during pregnancy or while breastfeeding may be unsafe.
What Have We Learned?
- Some research has suggested that chasteberry might reduce PMS symptoms such as breast pain or tenderness, but higher-quality evidence is needed to reach any definitive conclusions.
- One study suggested that chasteberry might reduce heavy menstrual bleeding related to an intrauterine device (IUD), but the evidence is of low quality.
- There isn’t enough reliable evidence to know if chasteberry would help with sexual dysfunction or infertility (but chasteberry may be unsafe during pregnancy).
- A preliminary study suggested that chasteberry might help with some menopausal symptoms, but more research is needed to study this potential effect.
- Initial reports have suggested that some chasteberry extracts might have antifungal effects, but more research is needed to explore this potential in people.
What Do We Know About Safety?
- Chasteberry is generally well tolerated in the short term. Chasteberry fruit extract has been used safely in research studies for up to 3 months. Side effects are generally mild and may include nausea, stomach pain, diarrhea, headache, or itching.
- Chasteberry supplementation may not be safe for women with hormone-sensitive conditions, such as breast, uterine, or ovarian cancer.
- The use of chasteberry during pregnancy or while breastfeeding may be unsafe.
Keep in Mind
- Take charge of your health—talk with your health care providers about any complementary health approaches you use. Together, you can make shared, well-informed decisions.
- If you take any type of medicine, talk with your health care provider before using any herbal product; some herbs and medicines interact in harmful ways.
- Federal Regulation of Herbal Products
- Depending on what’s in them, how they’re intended to be used, and how they’re administered (orally or topically), herbal products are regulated in a variety of ways. Many herbal products intended for oral use are marketed as dietary supplements. The regulatory paths for making and distributing dietary supplements are different than those for drugs.
- Unlike drugs, dietary supplements are not approved by the U.S. Food and Drug Administration (FDA) before they are sold to the public. When public health concerns arise about the safety of a dietary supplement or an ingredient including an herb, the FDA can take action to protect the public. Manufacturers and distributors of supplements are responsible for evaluating the safety and labeling of their products before marketing to ensure that they meet all regulatory requirements.
NCCIH Clearinghouse
The NCCIH Clearinghouse provides information on NCCIH and complementary and integrative health approaches, including publications and searches of Federal databases of scientific and medical literature. The Clearinghouse does not provide medical advice, treatment recommendations, or referrals to practitioners.
Toll-free in the U.S.: 1-888-644-6226
Telecommunications relay service (TRS): 7-1-1
Website: https://www.nccih.nih.gov
Email: info@nccih.nih.gov (link sends email)
PubMed®
A service of the National Library of Medicine, PubMed® contains publication information and (in most cases) brief summaries of articles from scientific and medical journals. For guidance from NCCIH on using PubMed, see How To Find Information About Complementary Health Practices on PubMed.
Website: https://pubmed.ncbi.nlm.nih.gov/
Office of Dietary Supplements (ODS), National Institutes of Health (NIH)
ODS seeks to strengthen knowledge and understanding of dietary supplements by evaluating scientific information, supporting research, sharing research results, and educating the public. Its resources include publications (such as Dietary Supplements: What You Need To Know) and fact sheets on a variety of specific supplement ingredients and products (such as vitamin D and multivitamin/mineral supplements).
Website: https://ods.od.nih.gov
Email: ods@nih.gov (link sends email)
Key References
- Chasteberry. Drugs and Lactation Database. (LactMed). National Institute of Child Health and Human Development. Updated May 15, 2024. Accessed at ncbi.nlm.nih.gov/books/NBK501807/ on August 28, 2024.
- Chaste tree. LiverTox: Clinical and Research Information on Drug-Induced Liver Injury [Internet]. National Institute of Diabetes and Digestive and Kidney Diseases. Updated January 20, 2023. Accessed at ncbi.nlm.nih.gov/books/NBK588847/ on August 28, 2024.
- Christelle K, Norhayati MN, Jaafar SH. Interventions to prevent or treat heavy menstrual bleeding or pain associated with intrauterine-device use. Cochrane Database of Systematic Reviews. 2022;(8):CD006034. Accessed at cochranelibrary.com on May 1, 2024.
- Csupor D, Lantos T, Hegyi P, et al. Vitex agnus-castus in premenstrual syndrome: a meta-analysis of double-blind randomised controlled trials. Complementary Therapies in Medicine. 2019;47:102190.
- Heirati SFD, Ozgoli G, KabodMehri R, et al. The 4-month effect of Vitex agnus-castus plant on sexual function of women of reproductive age: a clinical trial. Journal of Education and Health Promotion. 2021;10:294.
- Höller M, Steindl H, Abramov-Sommariva D, et al. Use of Vitex agnus‑castus in patients with menstrual cycle disorders: a single‑center retrospective longitudinal cohort study. Archives of Gynecology and Obstetrics. 2024;309(5):2089-2098.
- Islam Z, Caldeira GI, Caniça M, et al. Vitex genus as a source of antimicrobial agents. Plants. 2024;13(3):401.
- Kamal N, Mio Asni NS, Rozlan INA, et al. Traditional medicinal uses, phytochemistry, biological properties, and health applications of Vitex sp. Plants. 2022;11(15):1944.
- Mahady GB, Michel JL, Soni KK. Chaste tree. In: Coates PM, Betz JM, Blackman MR, et al., eds. Encyclopedia of Dietary Supplements. 2nd ed. New York, NY: Informa Healthcare; 2010:129-135.
- Manouchehri A, Abbaszadeh S, Ahmadi M, et al. Polycystic ovaries and herbal remedies: a systematic review. JBRA Assisted Reproduction. 2023;27(1):85-91.
- Mendes C, da Fonseca AM, Alves MS, et al. Narrative review of Vitex agnus-castus in symptoms in gynecology. Revista da Associacao Medica Brasileira (1992). 2022;68(5):716-719.
- Naseri R, Farnia V, Yazdchi K, et al. Comparison of Vitex agnus-castus extracts with placebo in reducing menopausal symptoms: a randomized double-blind study. Korean Journal of Family Medicine. 2019;40(6):362-367.
- Ooi SL, Watts S, McClean R, et al. Vitex agnus-castus for the treatment of cyclic mastalgia: a systematic review and meta-analysis. Journal of Women’s Health. 2020;29(2):262-278.
- Puglia LT, Lowry J, Tamagno G. Vitex agnus castus effects on hyperprolactinaemia. Frontiers in Endochrinology. 2023;14:1269781.
- Rashidipour M, Shakib P, Goudarzi G, et al. Native Iranian medicinal plants with anti-vaginal infection properties: a systematic review. Infectious Disorders Drug Targets. 2022;22(6):e10522204326.
- Vitex agnus-castus. NatMed Pro website. Accessed at naturalmedicines.therapeuticresearch.com on April 16, 2024. [Database subscription].
This publication is not copyrighted and is in the public domain. Duplication is encouraged.
NCCIH has provided this material for your information. It is not intended to substitute for the medical expertise and advice of your health care provider(s). We encourage you to discuss any decisions about treatment or care with your health care provider. The mention of any product, service, or therapy is not an endorsement by NCCIH.