Goal · Menstrual comfort
Food and period pain: ginger, fennel, heat and PMS
For cramps, over-the-counter NSAIDs taken at the first sign of pain, a heating pad and regular exercise have the best support. Ginger and fennel have small trials; pain that worsens over the years needs a check.
By the editors of Alimentotherapy Last reviewed 4 min read Not medical advice
The short answer
For ordinary period cramps, ACOG recommends NSAIDs such as ibuprofen or naproxen, taken at the first sign of your period or pain, along with heat and regular exercise Acog. Among kitchen remedies, ginger and fennel eased period pain in small trials, graded limited Daily 2015; Lee 2020. Pain that gets worse over time or lasts beyond your period can be a sign of endometriosis and needs a clinician Acog; MedlinePlus.
Foods and herbs for menstrual comfort, graded
Every claim from our remedy pages that relates to menstrual comfort, strongest evidence first. Each row links to the full page and its sources.
| Food or herb | Grade | What the research found |
|---|---|---|
| FennelPeriod pain (primary dysmenorrhea) | Limited | A 2020 review found 12 trials. Pooled, fennel eased period pain about as much as conventional drugs (seven trials, 502 women) and more than placebo, but results varied widely and small favorable studies suggested publication bias. |
| GingerPeriod pain (primary dysmenorrhea) | Limited | Four small trials found 750 to 2,000 mg of ginger powder in the first three or four days of the cycle lowered pain scores compared with placebo. |
| SaffronPremenstrual symptoms (PMS) | Limited | A meta-analysis of randomized trials found PMS symptoms improved with saffron. In one double-blind trial, 15 mg twice a day for two cycles eased PMS symptom scores more than placebo. |
| SaffronPeriod pain | Limited | The same meta-analysis found a smaller, borderline reduction in period pain (the confidence interval nearly reached zero). |
First steps for cramps
Primary dysmenorrhea is the cramping pain that comes just before or during a period, and it often eases as people get older Acog. Nonsteroidal anti-inflammatory drugs (NSAIDs) lower the prostaglandins behind the cramps; most, such as ibuprofen and naproxen, are sold over the counter, and they work best taken at the first sign of your period or pain. People with bleeding disorders, asthma, aspirin allergy, liver damage, stomach disorders or ulcers should not take NSAIDs Acog.
Heat. MedlinePlus suggests a heating pad on the lower belly, and warns never to fall asleep with it on MedlinePlus. A 2026 meta-analysis of 57 trials (5,359 participants) found heat reduced pain compared with no treatment and worked about as well as NSAIDs, with fewer side effects. The authors hedge their conclusions: heat is "likely" to reduce pain and "may" match NSAIDsYuan 2026.
Exercise. The Cochrane review of 12 trials (854 women) found regular exercise, about 45 to 60 minutes three times a week at any intensity, may reduce period pain substantially, though the evidence is low quality Armour 2019.
Ginger and fennel
In four small trials, 750 to 2,000 mg of ginger powder a day for the first three or four days of the cycle lowered pain scores compared with placebo Daily 2015. A 2020 review of fennel found 12 trials; pooled, fennel eased pain about as much as conventional drugs and more than placebo, but results varied widely and an excess of small positive studies suggested publication bias Lee 2020. Both are graded limited in the table on this page.
A warm cup of ginger tea or fennel tea is reasonable to try alongside heat, but it delivers less than the capsule doses in trials. Ginger supplements need care with blood thinners, and fennel medicines are not advised in pregnancy (see each remedy page).
PMS: calcium, saffron and the basics
Premenstrual syndrome brings bloating, breast tenderness, headaches, mood swings, irritability and food cravings in the days before a period. MedlinePlus self-care advice: limit salt and sugar, avoid caffeine and alcohol, get regular aerobic exercise through the month, and sort out sleep habits before taking anything for sleep MedlinePlus.
Calcium has the largest trial. In 466 women across 12 US centers, 1,200 mg of elemental calcium a day for three cycles cut total symptom scores by 48% from baseline, against 30% on placeboThys 1998. It is one trial, but a large one, and dairy and fortified foods are the food route to it.
Saffron at 30 mg a day eased PMS symptoms and depression scores over two cycles compared with placebo in one double-blind trial Agha 2008. Its grade is on the saffron page.
How to try a change fairly
Period symptoms vary from cycle to cycle, so track pain and mood on a simple 0 to 10 scale for two cycles before and two cycles after a change. One easier month proves little.
When to see a clinician, not the pantry
- Sudden or severe pelvic pain, especially if your period is more than a week late and you have been sexually active: contact a provider right away.
- Fever with pelvic pain, or increased or foul-smelling vaginal discharge.
- Period pain that gets worse over the years, starts days before your period or lasts after it ends, or comes with pain during sex or with bowel movements: possible signs of endometriosis.
- Pain that self-care has not relieved after 3 months, or pain more than 3 months after an IUD was placed.
- Heavy periods lasting more than 7 days, or bleeding between periods.
- PMS mood symptoms severe enough to affect work or relationships, or any thoughts of harming yourself (call or text 988).
Common questions
What is the best thing for period cramps?
ACOG recommends over-the-counter NSAIDs such as ibuprofen or naproxen, taken at the first sign of your period or pain, plus heat and regular exercise. People with bleeding disorders, asthma, aspirin allergy, ulcers, or liver or stomach disorders should not take NSAIDs and should ask their clinician instead.
Does ginger help period pain?
It may, a little. A 2015 review of four small trials found 750 to 2,000 mg of ginger powder a day for the first three or four days of the cycle lowered pain scores compared with placebo. The evidence is limited, and ginger tea delivers less than those doses.
Does calcium help PMS?
One large trial suggests it can. In 466 women, 1,200 mg of calcium a day for three cycles reduced total PMS symptom scores by 48% from baseline, against 30% with placebo. Food sources such as dairy and fortified foods count toward that amount.
Sources
Primary research and government sources, each checked on the date this page was reviewed.
- GuidelineAmerican College of Obstetricians and Gynecologists. Dysmenorrhea: Painful Periods (patient FAQ).
- MedlinePlusMedlinePlus. Painful menstrual periods (medical encyclopedia).
- MedlinePlusMedlinePlus. Endometriosis.
- MedlinePlusMedlinePlus. Premenstrual syndrome (medical encyclopedia).
- PubMedYuan D, et al. Heat therapy for primary dysmenorrhea: a systematic review and meta-analysis. Front Med (Lausanne). 2026. PMID 41657584.
- CochraneArmour M, et al. Exercise for dysmenorrhoea. Cochrane Database Syst Rev. 2019. PMID 31538328.
- PubMedDaily JW, et al. Efficacy of ginger for alleviating the symptoms of primary dysmenorrhea: a systematic review and meta-analysis of randomized clinical trials. Pain Med. 2015. PMID 26177393.
- PubMedLee HW, et al. Fennel for reducing pain in primary dysmenorrhea: a systematic review and meta-analysis of randomized controlled trials. Nutrients. 2020. PMID 33182553.
- PubMedThys-Jacobs S, et al. Calcium carbonate and the premenstrual syndrome: effects on premenstrual and menstrual symptoms. Premenstrual Syndrome Study Group. Am J Obstet Gynecol. 1998. PMID 9731851.
- PubMedAgha-Hosseini M, et al. Crocus sativus L. (saffron) in the treatment of premenstrual syndrome: a double-blind, randomised and placebo-controlled trial. BJOG. 2008. PMID 18271889.
Keep reading
- RemedyGingerThe best-studied kitchen remedy for nausea. Trials support it for pregnancy and after surgery; the evidence for joint and period pain is thinner.
- RemedyFennelA traditional after-dinner seed for wind and bloating, recognized by European regulators on the strength of long use rather than trials. Colic studies in babies are small.
- RemedySaffronA costly spice that is also one of the more-studied herbal extracts for mood. Trials in mild to moderate depression and PMS are encouraging but small, regional and prone to publication bias.
- How to make itGinger teaSlice or grate fresh ginger, simmer it in water and strain. It is the simplest kitchen remedy there is, and ginger is one of the few with moderate trial evidence, for nausea in early pregnancy.
- GoalFood and stress: what helps, and what the herb trials showEveryday stress responds best to exercise, sleep and relaxation practice, plus cutting back on caffeine and alcohol. Anxiety disorders need psychotherapy or medication; herb trials are small.