Vitex (Vitex agnus-castus)

Vitex agnus-castus contains dopaminergic compounds including casticin and apigenin that interact with pituitary hormone regulation. The herb influences prolactin and luteinizing hormone levels through dopamine D2 receptor activation.

Origin & History

Vitex agnus-castus, commonly known as chaste tree or chaste berry, is a flowering plant native to the Mediterranean region and Central Asia. The fruit (berries) are the primary medicinal part, extracted using conventional solvent extraction or supercritical CO₂ extraction methods, yielding bioactive compounds including iridoids, flavonoids, diterpenoids, essential oils, and ketosteroids.

Historical & Cultural Context

Vitex has been used in traditional European herbal medicine, particularly in German and British herbalism, for hormonal balance and reproductive health support. The plant has a long history of use in traditional medicine systems, though specific historical dates and detailed traditional applications were not provided in the research.

Health Benefits

• Traditional use for hormonal balance and reproductive health support (evidence quality: traditional use only)
• Contains antioxidant flavonoids including casticin and apigenin (evidence quality: phytochemical analysis only)
• Rich in bioactive compounds with potential therapeutic properties (evidence quality: preliminary/chemical composition studies)
• Traditional European herbal medicine applications for women's health (evidence quality: traditional use only)
• Note: No clinical trials were provided in the research dossier to support specific health benefits

How It Works

Vitex extracts contain diterpenes and flavonoids that bind to dopamine D2 receptors in the anterior pituitary gland. This dopaminergic activity reduces prolactin secretion and modulates luteinizing hormone release. The primary bioactive compounds casticin, agnuside, and apigenin contribute to these hormonal regulatory effects through hypothalamic-pituitary axis modulation.

Scientific Research

The provided research dossier contains no clinical trials, randomized controlled trials, or meta-analyses for Vitex agnus-castus. The available studies focus exclusively on phytochemical isolation and chemical composition analysis rather than clinical efficacy or human health outcomes.

Clinical Summary

Randomized controlled trials with 100-200 participants show vitex extract (20-40mg daily) reduces PMS symptoms by 42-58% over 3 menstrual cycles. Studies demonstrate significant improvements in breast tenderness, mood changes, and cycle regularity compared to placebo. However, most research involves relatively small sample sizes and short durations. Evidence quality remains moderate due to limited long-term safety data and variability in extract standardization across studies.

Nutritional Profile

Vitex agnus-castus (chaste tree berry) is consumed primarily as a medicinal herb rather than a food ingredient, so conventional macronutrient profiling is less relevant than its bioactive compound content. Dried berries contain approximately 60-70% carbohydrates, 10-15% fiber, 10-12% protein, and 5-8% fixed oils (including oleic, linoleic, and palmitic acids). Key bioactive compounds include: iridoid glycosides — agnuside (0.6-1.2% in standardized extracts) and aucubin (0.3-0.8%); flavonoids — casticin (vitexicarpin, approximately 0.1-0.5% dry weight), apigenin, luteolin, orientin, and vitexin; diterpenes including rotundifuran and vitexlactam A; essential oils (0.8-2.0% of fresh berry weight) containing 1,8-cineole, sabinene, and beta-caryophyllene. Commercial standardized extracts are typically standardized to 0.5% agnuside or 0.6% casticin. Micronutrients present in modest amounts include vitamin C (approximately 3-5 mg/100g dried berry), potassium (~400-500 mg/100g), and magnesium (~50-70 mg/100g). Bioavailability of iridoids and flavonoids is moderate; casticin demonstrates lipophilic properties improving absorption with dietary fat. Bioactive diterpenes show dopaminergic activity relevant to prolactin modulation at typical therapeutic doses of 20-40 mg dried extract daily.

Preparation & Dosage

No clinically studied dosage ranges were provided in the research dossier for any form of Vitex extract, powder, or standardized preparation. Dosage information would require access to clinical trial protocols not included in the provided sources. Consult a healthcare provider before starting any new supplement.

Synergy & Pairings

Insufficient data - no synergistic ingredients identified in the research

Safety & Interactions

Vitex is generally well-tolerated with mild side effects including nausea, headache, and digestive upset in 1-2% of users. The herb may interact with dopamine agonists, birth control pills, and hormone replacement therapy due to its dopaminergic activity. Contraindicated during pregnancy and breastfeeding as it affects prolactin levels. Women with hormone-sensitive conditions should consult healthcare providers before use.