Want a simple solution for period and hormone problems? Consider the humble mineral zinc.
According to the 2020 paper, The Role of Zinc in Selected Female Reproductive System Disorders, zinc can be an effective treatment for many women’s health conditions, including PCOS, period pain, endometriosis, and vaginal dryness during menopause.
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Zinc for women’s health
- Period pain. According to a 2024 meta-analysis, sustained zinc supplementation can significantly reduce period pain. It works by reducing prostaglandins, normalizing progesterone receptors, improving circulation, and preventing uterine muscle spasm.
- Irregular periods. Zinc helps to regulate the menstrual cycle by nourishing healthy ovarian follicles and promoting ovulation.
- Premenstrual mood symptoms, including perimenopausal mood symptoms. Zinc is great for brain health, and a 2025 systematic review and meta-analysis of randomised controlled trials found it can significantly improve PMS. It works by zinc calming glutamate receptors, which tips the balance toward more GABA. It also supports the hippocampus, the part of the brain that regulates the HPA axis (stress response system). Zinc can also reduce inflammation and dampen histamine activity.
- PCOS. Zinc is one of several natural androgen blockers that can reduce testosterone and improve androgen symptoms such as acne and hirsutism (facial hair). It works by downregulating 5α-reductase, thereby reducing the conversion of testosterone to active dihydrotestosterone (DHT).
- Endometriosis. Zinc deficiency may play a role in endometriosis, and zinc supplementation can reduce inflammation associated with the condition by inhibiting matrix metalloproteinase (MMP) activity.
- Acne. Zinc is an effective treatment for acne and works by blocking androgens, killing bacteria, and slowing sebum and keratin production.
- Menopause. By supporting collagen and tissue health, zinc can help relieve vaginal dryness associated with menopause.
- Thyroid disease. Along with iodine and selenium, zinc is essential for the synthesis and activation of thyroid hormone. It can also improve the hair loss associated with thyroid disease.
Zinc deficiency
The best food sources include red meat, seafood, and eggs. Plant foods are low in zinc.
Zinc deficiency affects about one in three women and is more common with heavy periods, alcohol, stomach acid medication, hypothyroidism, and hormonal birth control.
Symptoms of zinc deficiency include:
- hair loss
- dermatitis
- impaired immune function
- white spots on the fingernails.
The test is plasma zinc with a normal reference range of 11-23 umol/L or 70-150 ug/dL.
Dose and safety
A safe and effective dose is 30 mg per day, and the best types are zinc citrate, zinc picolinate, or zinc bisgylcinate. Be sure to take it immediately after a large meal, as zinc on an empty stomach can cause nausea. Ongoing doses of greater than 80 mg can deplete copper.
