Women's Wellness
PMS and PMDD
Many people notice physical and emotional changes in the days before a period, and for most they can be eased with self-care, a symptom diary and, when needed, professional treatment. This page is about premenstrual symptoms (PMS) and the more severe form, premenstrual dysphoric disorder (PMDD); period pain, heavy or irregular bleeding and menopause have their own pages.
General information, not medical advice. Last updated November 1, 2026. Written by the AlternativeMed editorial team. Not medically reviewed.
Start here
- Keep a daily symptom diary and note the dates of your periods for at least 2 cycles (the NHS suggestion); your doctor may ask for 2 to 3 months to see the pattern.
- Build in regular exercise, regular sleep times and smaller, more frequent meals, and cut back on alcohol, caffeine and smoking.
- See a doctor if self-care has not helped or symptoms are affecting work, study or relationships; get help the same day if you feel unable to keep yourself safe.
Be careful with
- Do not assume every monthly mood change is PMS: depression and anxiety are the most common conditions that overlap with it, and some other conditions can look similar.
- Supplements and herbs marketed for PMS are mostly untested or have low-certainty evidence. Check with a pharmacist or doctor first if you take any medicine, are pregnant, could become pregnant or are breastfeeding.
- Do not stop or change a prescribed medicine on your own because of PMS symptoms or this page; talk to the prescriber.
- Long-term use of over-the-counter anti-inflammatory pain relievers can cause stomach bleeding or ulcers; ask a clinician if you use them often.
Get help when
- Symptoms that lifestyle changes have not helped, or that affect your daily life (the NHS advice for seeing a GP).
- Feeling very anxious, angry, depressed or suicidal before your period: this can be PMDD and needs prompt care.
- Any thoughts of harming yourself: get help now. In the US call or text 988 (free, 24/7) or call your local emergency number; in the UK the NHS says to call 999 or go to A&E if you have PMDD symptoms and feel suicidal.
- Low mood, anxiety or other symptoms that last all month rather than easing after your period starts, because depression or anxiety may be the main problem.
- Heavy, prolonged or very irregular bleeding, or severe pelvic pain: see the heavy-and-irregular-periods and period-discomfort pages and a clinician.
About PMS and PMDD
What this goal means
Premenstrual syndrome (PMS) is a group of physical and emotional symptoms in the weeks before a period. The NHS says symptoms vary between people and from month to month, and most women have PMS at some point. The cause is not fully understood, but it may relate to changes in hormone levels across the menstrual cycle.
A small number of people have premenstrual dysphoric disorder (PMDD), which has similar but much more intense symptoms and a much greater effect on everyday life. The NHS says it has been linked to being very sensitive to hormone changes, or to certain inherited gene differences.
1What it can feel like
The NHS lists mood swings, feeling depressed or irritable, feeling upset, anxious or emotional, tiredness or trouble sleeping, bloating or cramping, breast tenderness, headaches, spotty skin, greasy hair, and changes in appetite or food cravings.
ACOG adds crying spells, social withdrawal, poor concentration, swelling of the hands or feet, aches and pains, and gastrointestinal symptoms. PMDD can also include headaches and joint and muscle pain, overeating, sleep problems and feeling very anxious, angry, depressed or suicidal.
1,2Why the timing matters
ACOG says that to diagnose PMS a clinician must confirm a pattern: symptoms present in the 5 days before a period for at least three cycles in a row, ending within 4 days after the period starts, and interfering with some normal activities. Recording symptoms every day for at least 2 to 3 months helps show whether the pattern is real.
2Conditions that can look like PMS
ACOG lists depression, anxiety, perimenopause, chronic fatigue syndrome, irritable bowel syndrome and thyroid disease as conditions that can mimic or overlap with PMS, and says about half of women seeking treatment for PMS have depression or an anxiety disorder. People with depression often have symptoms all month that worsen before or during periods. Other conditions such as migraines, asthma, allergies and seizure disorders can also get worse just before a period.
This is why a diary and a clinician's assessment are worth the effort before trying many products.
2When symptoms are severe
PMDD can include feeling very anxious, angry, depressed or suicidal. The NHS says to call 999 or go to A&E if you have PMDD symptoms and feel suicidal. In the US, SAMHSA says 988 offers free, 24/7 support: you can text, call or chat 988. Reaching out is a sign of strength, not weakness, and these feelings are treatable.
1,3Realistic expectations
ACOG says mild to moderate symptoms often can be relieved by changes in lifestyle or diet. Exercise and psychological skills show real but modest benefits in reviews, and the strongest evidence for medical treatment is for SSRIs, with some benefit from certain combined contraceptive pills. A Cochrane review found SSRIs probably reduce overall self-rated symptoms, but not everyone responds. Expect to track for a few cycles to judge any change.
Most supplement and herbal studies are small and at high risk of bias, so benefits are uncertain.
2,4,5,6Who this applies to
People who have periods and notice a regular pattern of symptoms before them. Teenagers, people who are pregnant or breastfeeding, and people with hormone-sensitive conditions should check with a clinician before using supplements or herbs. For period pain see the Manage Period Discomfort goal, and for bleeding concerns see Navigate Heavy or Irregular Periods.
7,1Related conditions and symptoms
Anxiety disorders → PCOS → Endometriosis and fibroids → Trauma and PTSD →
A manageable starting plan
An educational starting point, not a personal prescription. Adjust it to your own situation and any advice from your clinician.
Your first actions
- Start a daily symptom diary now and keep it for at least 2 cycles.
- Add regular aerobic exercise, steady sleep times and smaller, more frequent meals.
- Cut back alcohol, caffeine and smoking, especially in the week before your period.
- Book a doctor appointment if symptoms affect daily life or self-care has not helped.
Optional additions
- Try a yoga or relaxation routine for 9 to 12 weeks and compare scores.
- Add calcium-rich foods daily.
- Talk to a pharmacist before any PMS supplement or herb.
- Ask about cognitive behavioral therapy.
What to track
- Daily symptoms and severity, mood, sleep and period start dates.
- Alcohol, caffeine, exercise and meals on high-symptom days.
- Any new supplement or medicine and what changes.
When to reassess
After 2 to 3 cycles, review the diary: if symptoms still disrupt work, study or relationships, or mood is low all month, see a clinician and bring the diary.
When to seek professional support
- See a GP or ob-gyn if lifestyle changes have not helped or symptoms affect daily life.
- In the US call or text 988 for support in a crisis; in the UK the NHS lists 999 or A&E for suicidal feelings with PMDD.
- Ask about psychological therapy, SSRI treatment or hormonal options if symptoms are severe.
What helps
Ordered by how well the research supports each step. Evidence strength is shown on every card; precautions sit next to the advice.
Start here
A symptom diary (at least 2 cycles)
Moderate certaintyAddresses: Shows whether symptoms follow your cycle, and what helps
Why it may help: The NHS suggests keeping a diary of symptoms for at least 2 menstrual cycles to take to an appointment. ACOG says recording and rating symptoms every day for at least 2 to 3 months, with period dates, helps a clinician see whether you have PMS and rule out look-alike conditions.
How to apply it: Each day, note the date, symptoms and how strong they are, plus period start dates and anything that changed (sleep, alcohol, medicines). A notebook or a phone note is enough.
Who it may suit: Anyone with cyclical symptoms, and anyone about to see a doctor.
Precautions: If the diary shows low mood or anxiety on most days of the month, not just before periods, mention that to a clinician.
1,2Regular aerobic exercise
Moderate certaintyAddresses: May ease low mood, fatigue and pain before periods
Why it may help: ACOG says regular aerobic exercise lessens PMS symptoms for many women and may reduce fatigue and depression, and suggests at least 30 minutes most days, not only on symptom days. A 2026 systematic review and meta-analysis of 20 articles (running, Pilates and yoga) found exercise improved negative affect, pain and fatigue in women with PMS.
How to apply it: Choose something you can keep doing: brisk walking, cycling, swimming, running or yoga. Keep it going through the whole cycle.
Who it may suit: Most people without exercise restrictions.
Precautions: If you have heart disease, high blood pressure, joint problems, are pregnant or have been inactive, ask a clinician before starting.
2,8Regular, enough sleep
Low certaintyAddresses: May ease moodiness and tiredness
Why it may help: The NHS lists getting plenty of sleep, and ACOG says going to sleep and waking at the same times every day, including weekends, may help lessen moodiness and fatigue. Sleep trouble is itself a common PMS symptom.
How to apply it: Keep a steady bedtime and wake-up time and note sleep in your diary. See the sleep goals for detailed steps.
Who it may suit: Anyone whose sleep gets worse before periods.
Precautions: Sleep problems that last all month, or loud snoring and gasping at night, need a clinician's check.
1,2Smaller, more frequent meals with complex carbohydrates
Low certaintyAddresses: May steady mood and cravings
Why it may help: The NHS says you may find eating frequent smaller meals every 2 to 3 hours better. ACOG suggests a diet rich in complex carbohydrates (whole grains, barley, brown rice, beans, lentils), which may reduce mood symptoms and food cravings, and an eating schedule that keeps blood sugar level.
How to apply it: Add whole grains and legumes to meals and avoid long gaps between eating. Keep a snack handy for the symptom days.
Who it may suit: Most adults; useful when cravings or irritability rise before periods.
Precautions: People with diabetes should talk to their care team before changing meal patterns; if food worries or restricting feel out of control, see the eating-disorders page.
1,2Less alcohol, caffeine and smoking
Low certaintyAddresses: Removes common aggravators of mood, sleep and bloating
Why it may help: The NHS advises not smoking and not drinking too much alcohol. ACOG suggests avoiding caffeine and alcohol, and reducing fat, salt and sugar.
How to apply it: Move caffeine earlier in the day or cut down for the week before your period; swap in herbal tea or water.
Who it may suit: Anyone with sleep trouble, anxiety or breast tenderness before periods.
Precautions: If you use alcohol heavily, cutting back suddenly can be unsafe; ask a clinician.
1,2Relaxation and stress reduction
Low certaintyAddresses: May ease tension, mood symptoms and pain
Why it may help: The NHS suggests reducing stress with yoga or meditation. ACOG says finding ways to relax can help, and lists breathing exercises, meditation, yoga and massage; some women find biofeedback and self-hypnosis helpful.
How to apply it: Pick one practice and schedule it, especially for the days when symptoms are usually strongest.
Who it may suit: People whose symptoms are linked to stress, tension or poor sleep.
Precautions: If anxiety or panic is strong, see the condition pages and consider professional support.
1,2Additional options
Yoga or Pilates programmes
Low certaintyAddresses: Pain and fatigue relief in some trials
Why it may help: In the 2026 meta-analysis, yoga programs of 9 to 12 weeks with three or more sessions a week appeared more effective for pain, and yoga of 9 to 12 weeks for fatigue. The review pooled trials of running, Pilates and yoga.
How to apply it: Join a beginner class or follow a regular home routine for about 9 to 12 weeks and compare your diary scores.
Who it may suit: People who prefer gentler movement.
Precautions: Choose a style suited to your fitness; tell the teacher about pregnancy, injuries or medical conditions.
8,1Calcium-rich foods
Low certaintyAddresses: May help physical and mood symptoms
Why it may help: ACOG suggests adding calcium-rich foods such as yogurt and leafy green vegetables. A 2025 systematic review found calcium supplements had consistently positive effects on psychological PMS symptoms, though only one of the 31 trials had a low risk of bias.
How to apply it: Include dairy or calcium-rich alternatives and leafy greens daily; see the food section.
Who it may suit: Most people; foods first before supplements.
Precautions: Calcium supplements are covered under remedies with cautions.
2,6Over-the-counter pain relief for cramps and headaches
Moderate certaintyAddresses: Eases pain on symptom days
Why it may help: The NHS lists over-the-counter pain relievers as one self-care step. ACOG says anti-inflammatory pain relievers can reduce pain but long-term use may cause stomach bleeding or ulcers, so talk to a clinician first.
How to apply it: Use only as directed on the label and for the shortest time needed; ask a pharmacist if you take other medicines.
Who it may suit: People with cramping or headaches around their periods.
Precautions: Avoid if you have stomach ulcers, kidney disease or take blood thinners unless a clinician agrees; check pregnancy status first.
1,2Talk to someone and plan for hard days
Low certaintyAddresses: Reduces isolation and the sense of surprise
Why it may help: ACOG describes social withdrawal as a PMS symptom, and psychological interventions reduced anger, anxiety and depression scores in a 2026 meta-analysis of 20 trials. Knowing your pattern from your diary lets you plan lighter days and ask for support.
How to apply it: Share your diary pattern with a trusted person and plan quieter commitments on the days that are hardest.
Who it may suit: Anyone whose symptoms strain work or relationships.
Precautions: This does not replace professional care if symptoms are severe.
2,9Still being studied
Structured exercise programmes (running, Pilates, yoga)
Low certaintyAddresses: Better mood, pain and fatigue scores in trials
Why it may help: The 2026 systematic review pooled 20 articles and reported improvement in negative affect, pain and fatigue; subgroup findings favored running for mood and yoga for pain and fatigue over 9 to 12 weeks.
How to apply it: Used in trials: 9 to 12 weeks with at least three sessions a week.
Who it may suit: Adults with PMS who can exercise safely.
Precautions: Trial quality and follow-up vary; the review's own subgroup comparisons are indirect.
8Psychological programmes (including cognitive behavioral therapy)
Moderate certaintyAddresses: Lower PMS severity, anxiety and low mood scores
Why it may help: A 2026 meta-analysis of 20 randomized trials (1,369 women) found psychological interventions reduced PMS severity and related depression, anxiety and anger scores; an earlier meta-analysis found small to medium benefits for cognitive-behavioral interventions that lasted at follow-up, while noting overall efficacy was not fully satisfactory.
How to apply it: Delivered by a trained therapist or a structured programme; see the therapies section.
Who it may suit: Adults with PMS or PMDD who want a non-drug option.
Precautions: Needs a trained practitioner; one trial was an extreme outlier in the 2026 analysis.
9,10Food & nutrition
Eating pattern
The NHS suggests a healthy, balanced diet with frequent smaller meals every 2 to 3 hours. ACOG suggests complex carbohydrates (whole grains, barley, brown rice, beans, lentils), more calcium-rich foods, less fat, salt and sugar, and avoiding caffeine and alcohol. These are practical suggestions from health agencies rather than proven treatments.
1,2Foods and nutrients that have been studied
A 2025 systematic review of 31 randomized trials found vitamin B6, calcium and zinc had consistently positive effects on psychological PMS symptoms, but only one trial had a low risk of bias. It found insufficient evidence for vitamin B1, vitamin D, whole-grain carbohydrates, soy isoflavones, dietary fatty acids, magnesium, multivitamins or PMS-specific diets.
Calcium-rich foods (yogurt, leafy greens)
Low certaintyAddresses: May ease physical and mood symptoms
Why it may help: ACOG suggests adding them; trial evidence is mainly for calcium supplements, so food benefit is inferred.
How to apply it: Include a portion with most meals.
Who it may suit: Most people.
Precautions: Check with a clinician if you have kidney stones or take medicines that affect calcium.
2,6Whole grains, beans and lentils
Very low certaintyAddresses: May reduce mood symptoms and cravings
Why it may help: ACOG says a diet rich in complex carbohydrates may reduce mood symptoms and food cravings; the 2025 review rated whole-grain carbohydrate evidence insufficient.
How to apply it: Swap refined grains for whole grains and add legumes.
Who it may suit: Most people.
Precautions: Increase fibre gradually to avoid bloating.
2,6Remedies & supplements
Traditional use, laboratory findings and human trials are kept apart. "Natural" does not mean safe.
Calcium
Low certaintyStudied form and route: Food-first; supplement if advised
Intended outcome: Possible easing of physical and mood symptoms
Human evidence: ACOG says taking 1,200 mg of calcium a day can help reduce physical and mood symptoms of PMS. The 2025 systematic review found calcium consistently improved psychological PMS symptoms, but only one of 31 included trials had a low risk of bias. The NHS says there is not much evidence that calcium supplements work.
Limits: Study quality is low, and the sources differ on how strong the benefit is.
Interactions and precautions: Too much calcium can raise the risk of kidney stones and may interact with some medicines; ask a pharmacist, especially if pregnant or on other supplements.
Dose, only as reported in studies: ACOG: 1,200 mg of calcium a day.
2,6,1Vitamin B6
Low certaintyStudied form and route: Supplement
Intended outcome: Possible easing of mood symptoms
Human evidence: The 2025 review found vitamin B6 had consistently positive effects on psychological PMS symptoms, with the same bias caveat. The NHS lists it among supplements that may help but with not much evidence.
Limits: Mostly low-quality trials; benefit is uncertain.
Interactions and precautions: The NHS says 200 mg or more a day can cause nerve damage and advises no more than 10 mg a day in supplements unless a doctor advises. Check every label and avoid stacking products.
6,1,11Magnesium
Very low certaintyStudied form and route: Supplement
Intended outcome: Possible easing of bloating, breast tenderness and mood
Human evidence: ACOG says magnesium supplements may help reduce water retention (bloating), breast tenderness and mood symptoms. The 2025 review found insufficient evidence for magnesium, and the NHS says there is not much evidence.
Limits: Sources disagree; trials are small.
Interactions and precautions: Magnesium can cause loose stools and may interact with some medicines; kidney disease needs clinician advice.
2,6,1Vitamin D
Not enough evidenceStudied form and route: Supplement or sunlight/foods
Intended outcome: Unclear
Human evidence: The NHS lists vitamin D as a supplement that may help but with little evidence; the 2025 review found insufficient evidence for vitamin D in PMS psychological symptoms.
Limits: No clear PMS-specific benefit.
Interactions and precautions: Too much vitamin D can raise blood calcium; do not exceed label guidance.
1,6Chasteberry (Vitex agnus-castus)
Low certaintyStudied form and route: Standardized extract
Intended outcome: Possible easing of overall PMS symptoms and breast pain
Human evidence: NCCIH says some research suggests it might reduce symptoms such as breast pain, but higher-quality evidence is needed. A systematic review of 17 trials found a large pooled effect in placebo-controlled trials, but high risk of bias, very high heterogeneity and signs of publication bias mean no definite conclusion can be drawn.
Traditional use: Chasteberry has long been used in traditional European herbal practice for menstrual and breast symptoms.
Limits: Product strength varies; most trials are short and biased.
Interactions and precautions: NCCIH says chasteberry may not be safe for people with hormone-sensitive conditions such as breast, uterine or ovarian cancer, and may be unsafe in pregnancy or breastfeeding. Check with a clinician if you take hormonal contraceptives or other medicines.
7,12Evening primrose oil
Not enough evidenceStudied form and route: Capsules
Intended outcome: No clear benefit
Human evidence: NCCIH says there is insufficient evidence for evening primrose oil in PMS.
Limits: No good trial support.
Interactions and precautions: May cause stomach upset or headache and may interact with some medicines; avoid in pregnancy unless a clinician agrees.
13Evening primrose → Evening primrose oil, women's health and PMS →
Combined herbal and nutrient treatments (as a group)
Very low certaintyStudied form and route: Various
Intended outcome: Possible reduction in total symptom scores
Human evidence: A 2022 systematic review and meta-analysis of 15 randomized trials (1,211 women) of herbal medicine and nutritional supplements reported lower premenstrual symptom scores with substantial heterogeneity and mild adverse events in four trials, and concluded they may be effective and safe; the authors noted the guideline basis was poor-quality trial evidence.
Limits: Mixes many different products; individual results cannot be drawn from the pooled figure.
Interactions and precautions: Safety depends on the product and your medicines; speak to a pharmacist.
14Therapies & care
Established care for PMS and PMDD includes psychological therapy, antidepressant medicines of the SSRI type and some hormonal contraceptives; these are decisions made with a clinician. This page does not recommend particular medicines or doses, and you should not start, stop or change a prescribed medicine on your own.
Cognitive behavioral therapy and other psychological programmes
Moderate certaintyPsychological therapy The NHS lists cognitive behavioral therapy as a treatment a GP may recommend. A 2026 meta-analysis of 20 randomized trials found psychological interventions reduced PMS severity and related depression, anxiety and anger; an earlier meta-analysis found small to medium effects that lasted at follow-up but called overall efficacy not fully satisfactory.
Who it may suit: People who prefer a non-drug option, or want to add it to other treatment.
Precautions: Needs a trained practitioner; therapy does not replace urgent care for suicidal thoughts.
1,9,10Antidepressants of the SSRI class
High certaintyPrescription medicine ACOG says SSRIs can help treat PMDD in some women and can be used for 2 weeks before symptoms or throughout the cycle. A 2024 Cochrane review of 34 trials found SSRIs probably reduce overall self-rated premenstrual symptoms in PMS and PMDD (moderate-certainty evidence), with side effects such as nausea, insomnia and reduced libido.
Who it may suit: People with severe PMS or PMDD, as decided with a clinician.
Precautions: Side effects, pregnancy and combining with other medicines need clinician review; do not stop suddenly.
4,2,1Hormonal contraceptives (combined pill)
Low certaintyPrescription medicine The NHS lists hormonal medicine such as the combined contraceptive pill as a treatment option. ACOG says drugs that prevent ovulation may lessen physical symptoms, though not all relieve mood symptoms. A 2023 Cochrane review of five trials (858 women, mostly with PMDD) found one type of pill may improve overall symptoms and functioning, with low-quality evidence.
Who it may suit: People who also want contraception or whose symptoms are mainly physical, as advised by a clinician.
Precautions: Not suitable for everyone (for example some clotting, migraine or smoking-related risks); a clinician decides.
1,2,5Specialist referral
Not enough evidenceCare pathway The NHS says people who still have symptoms after trying treatments may be referred to a gynaecologist, psychiatrist or counsellor.
Who it may suit: Severe or persistent symptoms.
Precautions: Bring your symptom diary and a list of medicines and supplements.
1Acupuncture and reflexology
Not enough evidenceComplementary therapy The NHS lists acupuncture and reflexology as complementary options that may help but with not much evidence that they work.
Who it may suit: People who want to try them alongside care and understand evidence is limited.
Precautions: Use a qualified practitioner; tell your doctor.
1What to avoid
Habits, products and claims that can get in the way. Never stop a prescribed medicine without talking to the professional who prescribed it.
Risks that apply to most people
Smoking
Moderate certaintyWhy: The NHS says not to smoke as part of PMS self-care.
Who it applies to: Anyone who smokes.
Try instead: Ask a pharmacist or GP about stopping support.
1Drinking too much alcohol
Low certaintyWhy: The NHS advises not drinking too much alcohol, and ACOG suggests avoiding alcohol and caffeine to ease PMS.
Who it applies to: Anyone with mood, sleep or bloating symptoms before periods.
Try instead: Swap in herbal tea or water, and note the effect in your diary.
1,2Long gaps between meals
Low certaintyWhy: ACOG says keeping blood sugar level helps symptoms and the NHS suggests frequent smaller meals.
Who it applies to: People with strong cravings or irritability.
Try instead: Eat smaller meals or light snacks every few hours.
1,2Personal triggers to check
High caffeine, salt, sugar and fat
Low certaintyWhy: ACOG suggests reducing fat, salt and sugar and avoiding caffeine as part of diet changes for PMS.
Who it applies to: People with breast tenderness, bloating or cravings.
Try instead: Choose whole foods and track whether symptoms ease over a few cycles.
2Products that need caution
PMS-labelled products and supplement blends
Low certaintyWhy: ACOG says many advertised PMS products have not been tested or proven effective, and that excess amounts or combining with some medicines may be harmful.
Who it applies to: Anyone shopping for PMS supplements.
Try instead: Speak to a clinician or pharmacist first; choose single, well-studied options only if advised.
2,1Chasteberry in pregnancy, breastfeeding or hormone-sensitive conditions
Moderate certaintyWhy: NCCIH says chasteberry may not be safe for people with hormone-sensitive conditions such as breast, uterine or ovarian cancer, and may be unsafe in pregnancy or breastfeeding.
Who it applies to: People who are pregnant, trying to conceive, breastfeeding or have hormone-sensitive conditions.
Try instead: Do not use without clinician agreement; use self-care and professional options.
7High-dose vitamin B6 supplements
Moderate certaintyWhy: The NHS says 200 mg or more a day can cause loss of feeling in the arms and legs (peripheral neuropathy), sometimes permanently after several months, and the Department of Health and Social Care advises not exceeding 10 mg a day in supplements unless a doctor advises.
Who it applies to: Anyone taking B6 for PMS or in multi-vitamin blends.
Try instead: Check all labels and do not combine products; ask a pharmacist.
11Unsupported claims
"Balance your hormones naturally" products
Not enough evidenceWhy: Reviews of herbal and nutrient treatments for PMS rely on small, mixed-quality trials; a 2022 meta-analysis noted they were at poor trial quality and heterogeneity was substantial, and ACOG says many products are untested.
Who it applies to: Anyone seeing hormone-balance or detox claims.
Try instead: Use the evidence-rated options on this page and ask a clinician about persistent symptoms.
14,2Claims that one supplement cures PMS
Not enough evidenceWhy: The NHS says there is not much evidence that vitamin B6, calcium, vitamin D, magnesium, acupuncture or reflexology work; evidence is partial and mostly low quality.
Who it applies to: Anyone offered a single cure.
Try instead: Combine habits that show benefit with professional care when needed.
1,6Common mistakes
Treating monthly mood swings without checking for depression or anxiety
Moderate certaintyWhy: ACOG says depression and anxiety overlap with PMS in about half of those seeking treatment, and that depression symptoms can worsen before periods.
Who it applies to: People with low mood or worry on most days.
Try instead: Track symptoms across the whole month and share the diary with a clinician.
2Changing prescribed medicines on your own
Moderate certaintyWhy: SSRIs and hormonal contraceptives are prescription decisions; the NHS and Cochrane reviews describe benefits alongside side effects.
Who it applies to: Anyone already prescribed a treatment.
Try instead: Talk to the prescriber about side effects or concerns before making any change.
1,4Evidence & safety
What the research shows
The strongest evidence is for SSRIs in PMS and PMDD (moderate-certainty Cochrane evidence) and for psychological programmes and exercise, which show modest benefits in recent meta-analyses. Health agencies suggest diary-keeping, exercise, sleep, balanced meals and less alcohol and caffeine. Nutrient and herbal evidence is weaker: calcium and vitamin B6 look helpful in small trials at high risk of bias, chasteberry looks promising but limited, and evening primrose oil shows insufficient evidence.
Limits of the evidence
- Most supplement and herb trials are small, short and at high risk of bias; only one of 31 nutritional trials in the 2025 review had a low risk of bias.
- Chasteberry meta-analysis showed very high heterogeneity and publication bias.
- Exercise reviews pool different programmes, and outcome scales differ between studies.
- Many trials include a mix of PMS and PMDD, so results may not apply equally to both.
- Self-rated symptom scores are subjective and vary month to month.
Precautions and interactions
- Check any supplement or herb with a pharmacist if you take medicines.
- Chasteberry, evening primrose oil and many herbs are best avoided in pregnancy and breastfeeding unless a clinician agrees.
- Do not exceed label amounts of vitamin B6; high intakes can damage nerves.
- Never stop or change a prescribed medicine on your own.
Life-stage considerations
- Teenagers: symptoms can start early; see a clinician before supplements or herbs.
- Pregnancy and breastfeeding: avoid herbal PMS products such as chasteberry unless a clinician agrees (NCCIH says it may be unsafe).
- Perimenopause: ACOG lists it as a condition that can overlap with PMS; see the perimenopause goal and a clinician.
- Perimenopause and later: new or changing monthly symptoms are worth a clinician's review.
Warning signs
- Feeling very depressed, hopeless or suicidal before periods: seek help now (988 in the US; 999 or A&E in the UK).
- Symptoms that continue all month, or low mood that does not lift after the period starts.
- Severe pelvic pain, very heavy bleeding or bleeding between periods.
- Swelling, fever, severe headache or breathlessness that are new for you.
Claim checks
A single supplement cures PMS
insufficient
1,6Chasteberry reliably treats PMS
low
7,12Evening primrose oil relieves PMS
insufficient
13SSRIs are the only effective treatment
mixed
4,9,5PMS is just stress or in your head
against
1,2Questions people ask
What is the difference between PMS and PMDD?
PMDD has similar symptoms, but they are much more intense and have a much greater effect on daily life. The NHS says PMDD can include feeling very anxious, angry, depressed or suicidal.
How do I know if it is PMS?
ACOG says a clinician confirms a pattern: symptoms in the 5 days before a period for at least three cycles in a row, ending within 4 days after the period starts and interfering with normal activities. A daily diary helps.
Should I keep a diary?
Yes. The NHS suggests a symptom diary for at least 2 menstrual cycles to take to your appointment; ACOG says 2 to 3 months of daily ratings with period dates.
Does exercise help?
ACOG says regular aerobic exercise lessens PMS symptoms for many women. A 2026 meta-analysis found improvement in negative affect, pain and fatigue.
Do SSRIs help PMS?
A Cochrane review of 34 trials found they probably reduce overall self-rated symptoms in PMS and PMDD, with side effects such as nausea, insomnia and reduced libido. They are a prescription decision.
Does chasteberry work?
Evidence is promising but limited, with high risk of bias in the studies. NCCIH says it may not be safe in pregnancy, breastfeeding or hormone-sensitive conditions.
Is evening primrose oil worth taking?
NCCIH says there is insufficient evidence for PMS.
Can calcium or vitamin B6 help?
ACOG says 1,200 mg of calcium a day can help physical and mood symptoms, and a 2025 review found B6 and calcium helpful in small trials, but with high risk of bias. The NHS says evidence is limited, and high-dose B6 can harm nerves.
Can the pill help PMS?
The NHS lists the combined pill as a treatment option; a Cochrane review found one pill type may improve overall symptoms in low-quality trials. A clinician decides if it suits you.
When should I see a doctor?
See a clinician if lifestyle changes have not helped or symptoms affect daily life. If you feel suicidal, get help now: call or text 988 in the US, or call 999 or go to A&E in the UK.
Are herbs safe in pregnancy?
Many are unstudied. NCCIH says chasteberry may be unsafe in pregnancy; ask a clinician before any herb.
References
- NHS. PMS (premenstrual syndrome). Read 2026-11-01. source
- American College of Obstetricians and Gynecologists. Premenstrual Syndrome (PMS). Read 2026-11-01. source
- SAMHSA. 988 Suicide and Crisis Lifeline. Read 2026-11-01. source
- Selective serotonin reuptake inhibitors for premenstrual syndrome and premenstrual dysphoric disorder. Cochrane Database Syst Rev. 2024. PMID 39140320. Read 2026-11-01. source
- Ma S et al. Oral contraceptives containing drospirenone for premenstrual syndrome. Cochrane Database Syst Rev. 2023. PMID 37365881. Read 2026-11-01. source
- Robinson J et al. Effect of nutritional interventions on the psychological symptoms of premenstrual syndrome in women of reproductive age: a systematic review. Nutr Rev. 2025. PMID 38684926. Read 2026-11-01. source
- NCCIH. Chasteberry. Read 2026-11-01. source
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Related on AlternativeMed
Related goals
Understand Your Menstrual Cycle → Manage Period Discomfort → Navigate Heavy or Irregular Periods → Navigate Perimenopause → Manage Irritability → Manage Everyday Stress → Fall Asleep Faster →
Ingredients, foods and supplements
Chasteberry → Evening primrose → Calcium → Vitamin B6 → Magnesium → Vitamin D →
Research, safety and claim-check resources
Women's Wellness starting guide → Nutrition for women: iron, folate, calcium → Women's health: when to get help → Women's wellness research and evidence → Medication interactions → Pregnancy and breastfeeding safety → Sleep →