Mature Chaste Tree

Chasteberry is the fruit of the chaste tree, a small shrub-like tree native to Central Asia and the Mediterranean region, which is a deciduous and fairly hardy tree or shrub that thrives in well-drained, acidic soil in full sun. The chasteberry tree may reach a height of twenty feet. Chasteberry is a free-spreading tree with fragrant flowers and berries (somewhat like peppercorns) that are dark purple and yellowish within, with an aromatic odor (somewhat like peppermint). The name is thought to come from a belief that the plant promoted chastity–it is reported that monks in the Middle Ages used chasteberry to decrease sexual desire. Mostly used by women as an herbal remedy for menopause and to ease menstrual problems.

Chasteberry_bushThe seeds were once thought to safeguard chastity as an “anaphrodisiac,” and wives of traveling Roman soldiers spread the herb around them to decrease their interest in sex, thus giving rise to the name Chaste Tree. In the Middle Ages, monks relied on the herb for the very same purpose of suppressing the libido, and thus Chasteberry also acquired the name of Monk’s Pepper and Cloister Pepper.

Common Names–chasteberry, chaste-tree berry, vitex, monk’s pepper

Latin Name–Vitex agnus-castus,

  • In the past, chasteberry extracts were used to treat a variety of gynecological disorders and skin conditions.
  • Today, chasteberry is promoted as a dietary supplement for symptoms of premenstrual syndrome, breast pain associated with the menstrual cycle, infertility, and other conditions.

What Chasteberry Is Used For

  • Chasteberry has been used for thousands of years, mostly by women to ease menstrual problems and to stimulate the production of breast milk. Also as an herbal remedy for menopause.
  • Chasteberry is still used for menstrual problems, such as premenstrual syndrome (PMS), as well as for symptoms of menopause, some types of infertility, and acne. Herbal remedy for sex drive and as an herbal remedy for menopause.

How Chasteberry Is Used

  • The dried ripe chasteberry is used to prepare liquid extracts or solid extracts that are put into capsules and tablets.

What the Science Says about Chasteberry


  • A few studies of chasteberry for premenstrual syndrome (PMS) have found a benefit. However, most of these studies were not well designed, so firm conclusions about chasteberry for PMS cannot be drawn.
  • Small studies suggest that chasteberry may help with breast pain and some types of infertility, but there is not enough reliable scientific evidence to determine whether chasteberry has any effect on these conditions.
  • NCCAM is funding studies on chasteberry. Recent projects have explored how chasteberry works in the body and how it might affect symptoms of PMS.
  • When used in limited amounts, chasteberry appears to be generally well tolerated. Side effects are generally mild, and may include nausea, headache, gastrointestinal disturbances, or itching.
  • Taking chasteberry during pregnancy or while breastfeeding may not be safe.
  • It may not be safe for women with hormone-sensitive conditions, such as breast, uterine, or ovarian cancer, to take this herb. It’s possible that chasteberry might interact with some medicines, such as birth control pills, drugs used to treat Parkinson’s disease, and drugs used to treat psychosis. If you’re taking medicine, talk with your health care provider before using chasteberry.

Side Effects and Cautions about Chasteberry

  • Chasteberry has not been associated with serious side effects. However, it can cause gastrointestinal problems, acne-like rashes, and dizziness.
  • Chasteberry may affect certain hormone levels. Women who are pregnant or taking birth control pills or who have a hormone-sensitive condition (such as breast cancer) should not use chasteberry.
  • Because chasteberry may affect the dopamine system in the brain, people taking dopamine-related medications, such as selegiline, amantadine, and levodopa, should avoid chasteberry.
  • Tell your health care providers about any complementary and alternative practices you use. Give them a full picture of what you do to manage your health. This will help ensure coordinated and safe care.

The wise man says:

June 24, 2023

If you are working on a project with another individual and you received a message that is contrary to your objective, before you attack or ask why, simply ask what the message is about giving the other person a chance to explain. This is prudence.

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