Have you ever been recommended chasteberry (Vitex agnus-castus) for menstrual cramps or hormonal acne? This medicinal plant – also known as chaste tree or agnus castus – has been used for centuries to treat hormonal imbalances.
But although many swear by its effectiveness, experts are now also warning: The phytohormones it contains can help, but in some cases they can also be harmful.
This article provides a brief and clear explanation of how chasteberry works and what risks you should be aware of before taking it.
What is chasteberry (Vitex agnus-castus) and when is it used?
The chasteberry plant originates from the Mediterranean region and has been used since antiquity to treat women's ailments. Today, you can find it in teas, tinctures, and dietary supplements that aim to regulate hormone balance. Chasteberry is known for its progestogenic effect – it can stimulate the production of the hormone progesterone, which is said to help with hormonal imbalances.
Many women want to avoid synthetic hormones and therefore turn to herbal alternatives such as chasteberry (Vitex agnus-castus). It is frequently recommended for:
- PMS (premenstrual syndrome): mood swings, breast tenderness and irritability.
- Menstrual cycle disorders : Irregular or absent menstruation.
- Desire to have children : Support for luteal phase deficiency.
- Hormonal acne : Treatment of skin problems caused by hormonal fluctuations. ( 1, 2)
How does chasteberry work?
1. Influence on the hormonal balance: Prolactin as a key factor
Chasteberry primarily affects prolactin levels in the body. Prolactin is a hormone produced in the pituitary gland. It plays an important role during breastfeeding, but levels can also be elevated in non-breastfeeding women due to stress or other factors. Elevated prolactin levels can lead to hormonal imbalances, such as:
- Menstrual cycle irregularities (e.g., absence or shortening of ovulation)
- Infertility , as ovulation often fails to occur.
- Breast tenderness and PMS symptoms
Chasteberry has a regulating effect by lowering prolactin levels. This can stabilize the cycle and promote ovulation. At the same time, a lower prolactin level supports progesterone production, which can be particularly helpful for women with luteal phase deficiency or PMS. 3)
2. Phytohormones: Support or risk?
Another crucial characteristic of chasteberry is its phytohormone content – plant-based substances that act like hormones in the body. These are similar to progesterone, a hormone important for stabilizing the second half of the menstrual cycle (luteal phase).
Women with low progesterone levels (e.g., due to luteal phase deficiency) often benefit from this effect. They experience a reduction in PMS symptoms, a more stable cycle length, and better preparation of the uterine lining for a possible pregnancy.
However, in women with an existing excess of progesterone or an estrogen deficiency, phytohormones can place an additional burden on the hormonal balance. 4)
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Who should be cautious when taking chasteberry?
Women with excess progesterone
An excess of progesterone can trigger symptoms such as fatigue, weight gain, depressed mood, and water retention. Since chasteberry can stimulate progesterone production, it often worsens these symptoms.
Women with estrogen deficiency
Women going through menopause or with hormonal imbalances such as estrogen deficiency should also be cautious. Low estrogen levels can cause symptoms like dry skin, hair loss, and sleep disturbances. Since chasteberry does not increase estrogen levels, it may potentially worsen these symptoms.
Other risk groups
➤ Women who use hormonal contraceptives such as the pill or hormonal IUD.
➤ Women with PCOS (Polycystic Ovary Syndrome), as chasteberry could worsen the complex hormonal relationships.
➤ Pregnant and breastfeeding women.
( 3, 5)
Possible side effects of chaste tree
Even though chasteberry is a natural product, side effects can still occur:
➤ Headaches
➤ Menstrual irregularities due to incorrect dosage
➤ Gastrointestinal problems
➤ Skin reactions
Women with a sensitive hormonal system should pay particular attention to side effects. 3)
Myths about chasteberry
"Chasteberry is suitable for every woman"
That's not true. The healing effects of chaste tree berry are only beneficial in cases of specific hormonal imbalances.
"Chasteberry regulates all hormones"
Chasteberry primarily affects prolactin and progesterone, but not estrogen. Women with estrogen deficiency are often disappointed.
So, when is chasteberry helpful and when is it not?
Helpful for:
✓ Elevated prolactin levels
✓ Luteal phase deficiency
✓ PMS with symptoms such as breast tenderness and mood swings
Not helpful for:
Existing progesterone excess
✕ Estrogen deficiency, especially during menopause
✕ Menstrual irregularities without a clear diagnosis
Why a sound diagnosis is so important
Hormonal imbalances can have many causes. A thorough diagnosis by a doctor or naturopath is crucial to determine whether chasteberry is the right remedy for you. The symptoms of estrogen deficiency or progesterone excess are often similar, which is why self-diagnosis can quickly lead to misinterpretations.
Natural alternatives to chaste tree berry
Herbal remedies
→ Lady's mantle : Supports the menstrual cycle and helps with PMS.
→ Yarrow : Promotes blood circulation and relieves cramps. Yarrow's effects are particularly helpful for menstrual pain.
→ St. John's wort: Effective against PMS-related mood swings.
→ Maca root : Supports hormonal balance and provides energy.
→ Evening primrose oil : Helps with breast tenderness and dry skin.
( 6, 7, 8, 9, 10)
Nutrition and lifestyle
1. A balanced diet is the foundation for a stable hormonal balance. Cruciferous vegetables such as broccoli, cauliflower, Brussels sprouts, and kale are particularly helpful. These vegetables contain substances that support the liver in processing and breaking down excess hormones like estrogen.
- Dietary fiber : It promotes digestion and helps eliminate excess hormones from the body. Whole grain products, flaxseeds, and vegetables are particularly valuable.
- Healthy fats : Omega-3 fatty acids, which are found in fatty fish, chia seeds or walnuts, for example, promote hormone production and have an anti-inflammatory effect.
- Protein-rich foods : Legumes, eggs and lean meat provide important building blocks for hormone production.
- Avoid sugar and processed foods : These can cause blood sugar levels to fluctuate significantly and put additional strain on hormones. ( 11,12)
2. Anti-inflammatory foods: Inflammation in the body can negatively affect hormone balance. Therefore, it is important to pay attention to an anti-inflammatory diet:
- Turmeric : The active ingredient curcumin has strong anti-inflammatory properties. Sprinkle it into your tea, smoothie, or on your food.
- Ginger : A natural anti-inflammatory that also promotes digestion and stabilizes blood sugar levels.
- Berries : Blueberries, raspberries and strawberries are rich in antioxidants that fight free radicals and promote cell health.
- Green leafy vegetables : Spinach, chard and kale contain nutrients such as magnesium, which can reduce stress and support hormone production.
Another tip: Drink plenty of water to support the detoxification processes in your body. (13,14,15)
3. Stress reduction: Chronic stress is one of the most common disruptors of the hormonal balance. Stress promotes the production of cortisol, a stress hormone that can throw the balance of progesterone, estrogen, and other hormones out of whack.
- Yoga : Regular yoga practice helps reduce stress, improve blood circulation, and calm the nervous system. Certain yoga poses, such as the "shoulder bridge" or the "downward-facing dog," even directly stimulate hormone production.
- Meditation : Just 10 minutes of mindfulness meditation a day can lower your cortisol levels and noticeably reduce your stress levels.
- Exercise in the fresh air : A walk in nature or light jogging not only improves mood, but also promotes the release of endorphins and regulates blood sugar levels. ( 16, 17, 18)
Conclusion: Use chasteberry with caution.
Sometimes your body simply needs time and gentle support to regain its balance. Small changes in your daily routine and natural habits can make a big difference.
If you'd like to learn more about hormonal health, please visit our website . Your body is unique – find the solution that truly suits you.
Stay informed and take care of your health! If you have any questions on this topic, we look forward to your comments and emails at hello@fembites.com .
Disclaimer: When we write "woman", we mean all people who have a menstrual cycle.
Sources:
(1) https://pubmed.ncbi.nlm.nih.gov/38191297/
(2) https://pmc.ncbi.nlm.nih.gov/articles/PMC9168018/
(3) https://pubmed.ncbi.nlm.nih.gov/38075075/
(4) https://pubmed.ncbi.nlm.nih.gov/12569111/
(5) https://pubmed.ncbi.nlm.nih.gov/12809367/
(6) https://pubmed.ncbi.nlm.nih.gov/35542286/
(7) https://pubmed.ncbi.nlm.nih.gov/33480339/
(8) https://pubmed.ncbi.nlm.nih.gov/35294606/
(9) https://pubmed.ncbi.nlm.nih.gov/37561965/
(10) https://pubmed.ncbi.nlm.nih.gov/31497576/
(11) https://pmc.ncbi.nlm.nih.gov/articles/PMC2744625/
(12) https://pmc.ncbi.nlm.nih.gov/articles/PMC3257651/
(13) https://pmc.ncbi.nlm.nih.gov/articles/PMC8572027/
(14) https://pmc.ncbi.nlm.nih.gov/articles/PMC10181412/
(15) https://pmc.ncbi.nlm.nih.gov/articles/PMC2908954/
(16) https://pmc.ncbi.nlm.nih.gov/articles/PMC10520539/
(17) https://pubmed.ncbi.nlm.nih.gov/23724462/
(18) https://pubmed.ncbi.nlm.nih.gov/26477919/
