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Supplements for cycle health: what actually helps

Supplements aren't magic, but a few have real evidence for PMS, cramps, and cycle health. Here's what works, the doses studied, and when food is the better answer.

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Magnesium

Some of the best evidence for PMS and cramps. Around 200-400 mg/day (glycinate form is best tolerated) may reduce bloating, mood symptoms, and cramping over 2-3 cycles. Found in leafy greens, nuts, seeds, dark chocolate.

Vitamin B6

Studied for PMS mood symptoms (irritability, low mood). Doses up to ~100 mg/day have evidence, but don't exceed that without medical advice - too much can harm nerves. Often combined with magnesium.

Iron

Important if you have heavy periods, which can cause iron deficiency and fatigue. Don't self-prescribe high doses - ask for a ferritin blood test first. Get iron from red meat, lentils, spinach (pair with vitamin C for absorption).

Vitamin D and omega-3

Vitamin D supports overall hormone and bone health; many people are low, especially in winter (1000-2000 IU/day is common). Omega-3 (from oily fish or supplements) may reduce period pain and inflammation.

Food first, then supplements

A balanced diet covers most needs. Supplements help fill gaps or target specific symptoms - they don't replace good food, sleep, and movement. Talk to a doctor before starting, especially if you're on medication, pregnant, or trying to conceive.

Frequently asked questions

What's a healthy cycle length?

Cycles between 21 and 35 days are healthy. Average is 28 days. What matters more than the exact number is consistency from month to month.

When should I track my cycle?

Daily, even if you only log the period start date. After 1-2 cycles, Luna's predictions become accurate. Adding mood, symptoms, and cervical mucus makes them sharper.

Is it safe to skip my period using birth control?

Yes, modern continuous birth control regimens are safe and supported by major medical bodies. The withdrawal bleed week was historical convention, not medical necessity.

Can stress mess up my cycle?

Yes. Chronic stress can delay ovulation, lengthen cycles, or stop periods (hypothalamic amenorrhea). Reducing stress + adequate calorie intake usually restores cycles.

How is Luna different from other trackers?

Luna runs entirely inside Telegram โ€” no app to download. Predictions adapt to your actual data. Privacy-first: data never sold. Free for the first 89 days, then optional Pro.

When should I see a doctor about my cycle?

Cycles consistently shorter than 21 days or longer than 35, periods longer than 7 days, severe pain that disrupts daily life, bleeding between periods, or no period for 3+ months without pregnancy.

Sources

  1. American College of Obstetricians and Gynecologists. Your menstrual cycle.
  2. Royal College of Obstetricians and Gynaecologists (UK). Painful periods.
  3. NHS UK. Irregular periods โ€” causes and when to see a GP.
  4. Harvard Medical School. Women's health publications.

Related articles

Open Luna in Telegram

Supplements aren't magic, but a few have real evidence for PMS, cramps, and cycle health. Here's what works, the doses studied, and when food is the better answer.

Open Luna in Telegram