Information that could help.
Evidence-led, with cautions where they matter.
Period pain & dysmenorrhoea
Studied for cramps; results vary by product and study.
GingerMixed
What research suggests
Small trials suggest some reduction in period cramps.
Study limitations
Short trials use varied extracts; comparisons with usual care are limited.
Medication interactions
May increase bleeding risk with anticoagulants.
Safety & when to ask
Can cause heartburn; check before use in pregnancy.
FennelLimited
What research suggests
Studied for menstrual cramps in small trials.
Study limitations
Small, short studies; preparations differ.
Medication interactions
Possible interactions with hormone-sensitive treatments.
Safety & when to ask
Avoid concentrated extracts in pregnancy without advice.
CinnamonLimited
What research suggests
Studied for cramps and PCOS metabolic markers.
Study limitations
Small, inconsistent trials; food and extract doses differ.
Medication interactions
May add to the effect of glucose-lowering medicines.
Safety & when to ask
Cassia cinnamon concentrates may contain liver-toxic coumarin.
ChamomileLimited
What research suggests
Small studies explore cramps and premenstrual discomfort.
Study limitations
Few robust trials; teas and extracts are not comparable.
Medication interactions
May interact with sedatives or blood thinners.
Safety & when to ask
Avoid if allergic to daisy-family plants; ask before pregnancy use.
DillLimited
What research suggests
Small studies have looked at period pain.
Study limitations
Too few high-quality trials to establish benefit.
Medication interactions
Interactions have not been well studied.
Safety & when to ask
Supplement-strength preparations are not well studied in pregnancy.
ValerianLimited
What research suggests
Studied for sleep and, less often, period pain or menopause sleep.
Study limitations
Mixed sleep results; very little good pain evidence.
Medication interactions
Can add to sedatives, alcohol and anaesthetics.
Safety & when to ask
May cause drowsiness; avoid driving when affected; pregnancy safety unclear.
Omega-3 / fish oilMixed
What research suggests
Small trials explore period pain, PMS, PCOS and pelvic inflammation.
Study limitations
Different EPA/DHA amounts and short follow-up make results uncertain.
Medication interactions
Discuss with a clinician if taking anticoagulants or before surgery.
Safety & when to ask
May cause reflux; check fish allergy and product quality.
MagnesiumMixed
What research suggests
Small trials explore cramps, PMS and sleep.
Study limitations
Inconsistent forms and doses; benefits are not established for everyone.
Medication interactions
Separates from some antibiotics and thyroid medication; check timing with a pharmacist.
Safety & when to ask
High doses cause diarrhoea; kidney disease increases risk.
ZincLimited
What research suggests
Small trials explore cramps and inflammatory symptoms.
Study limitations
Few trials; benefit without deficiency is uncertain.
Medication interactions
Reduces absorption of some antibiotics; discuss timing.
Safety & when to ask
Excess zinc can cause copper deficiency and nausea.
Vitamin B1 (thiamine)Limited
What research suggests
A small number of trials have looked at period pain.
Study limitations
Older or small studies; not enough to establish routine use.
Medication interactions
Few major interactions known at usual supplement amounts.
Safety & when to ask
Ask a clinician before using high-dose products.
Vitamin ELimited
What research suggests
Small trials explore cramps, PMS and endometriosis pain.
Study limitations
Results vary and studies are generally short.
Medication interactions
High doses may increase bleeding with anticoagulants.
Safety & when to ask
More is not necessarily safer; check before surgery or pregnancy.
PMS & PMDD
PMDD can be severe; supplements do not replace medical or mental-health support.
CalciumModerate
What research suggests
Some trials suggest PMS symptom improvement; essential for bone health when intake is low.
Study limitations
PMS studies vary and supplements are not a substitute for assessing severe PMDD.
Medication interactions
Can interfere with thyroid medicine, iron and some antibiotics; separate doses as advised.
Safety & when to ask
Too much may cause constipation or kidney stones; assess dietary intake first.
Vitamin B6Mixed
What research suggests
Some studies explore PMS symptoms.
Study limitations
Study quality varies; no established benefit for severe PMDD.
Medication interactions
Can interact with levodopa without carbidopa.
Safety & when to ask
Excess or long-term use can cause nerve damage, including from combined products.
MagnesiumMixed
What research suggests
Small trials explore cramps, PMS and sleep.
Study limitations
Inconsistent forms and doses; benefits are not established for everyone.
Medication interactions
Separates from some antibiotics and thyroid medication; check timing with a pharmacist.
Safety & when to ask
High doses cause diarrhoea; kidney disease increases risk.
Vitex / chasteberryMixed High caution
What research suggests
Small trials suggest possible relief of some PMS symptoms.
Study limitations
Different extracts and trial methods; PMDD evidence is weak.
Medication interactions
May interact with hormonal treatments or dopamine-related medicines.
Safety & when to ask
Hormone-like activity; avoid in pregnancy; speak with a GP, pharmacist or specialist before use.
SaffronLimited
What research suggests
Small studies explore PMS mood symptoms.
Study limitations
Very small and short trials; not established for PMDD.
Medication interactions
Discuss with a pharmacist if taking antidepressants or blood thinners.
Safety & when to ask
Concentrated products are not established as safe in pregnancy.
Omega-3 / fish oilMixed
What research suggests
Small trials explore period pain, PMS, PCOS and pelvic inflammation.
Study limitations
Different EPA/DHA amounts and short follow-up make results uncertain.
Medication interactions
Discuss with a clinician if taking anticoagulants or before surgery.
Safety & when to ask
May cause reflux; check fish allergy and product quality.
Ginkgo bilobaLimited
What research suggests
A few small trials explore PMS symptoms.
Study limitations
Few trials and uncertain clinical impact.
Medication interactions
May raise bleeding risk with anticoagulants or antiplatelets.
Safety & when to ask
Avoid before surgery; discuss with a pharmacist.
St John's wortMixed High caution
What research suggests
Studied for low mood and some menopausal symptoms; not proven for PMDD.
Study limitations
Studies use different extracts; it is not a replacement for mental-health care.
Medication interactions
Major interactions: can reduce effectiveness of hormonal contraception and many medicines, including antidepressants, HIV medicines and anticoagulants.
Safety & when to ask
High caution: serious interaction and pregnancy concerns. Speak with a GP, pharmacist or specialist before use.
Soy isoflavonesMixed
What research suggests
Studied for hot flushes and PMS; effects, if any, are usually modest.
Study limitations
Results vary by formulation and population.
Medication interactions
Discuss with a clinician if taking thyroid medicines or hormonal treatments.
Safety & when to ask
Hormone-like activity; seek advice for hormone-sensitive conditions or pregnancy.
Vitamin ELimited
What research suggests
Small trials explore cramps, PMS and endometriosis pain.
Study limitations
Results vary and studies are generally short.
Medication interactions
High doses may increase bleeding with anticoagulants.
Safety & when to ask
More is not necessarily safer; check before surgery or pregnancy.
Myo-inositolMixed
What research suggests
Studied for PCOS metabolic/ovulation outcomes and fertility support.
Study limitations
International PCOS guidance finds benefits uncertain; fertility evidence is limited.
Medication interactions
Discuss if taking glucose-lowering medicines.
Safety & when to ask
May cause stomach upset; fertility treatment decisions need individual care.
PCOS
Metabolic markers and ovulation are not the same as long-term health or live birth.
Myo-inositolMixed
What research suggests
Studied for PCOS metabolic/ovulation outcomes and fertility support.
Study limitations
International PCOS guidance finds benefits uncertain; fertility evidence is limited.
Medication interactions
Discuss if taking glucose-lowering medicines.
Safety & when to ask
May cause stomach upset; fertility treatment decisions need individual care.
D-chiro-inositolLimited
What research suggests
Studied in PCOS alone or alongside myo-inositol.
Study limitations
Best ratio, dose and long-term outcomes remain unclear.
Medication interactions
Discuss if taking glucose-lowering medicines.
Safety & when to ask
Pregnancy and fertility treatment use should be discussed with a specialist.
NAC (N-acetylcysteine)Mixed
What research suggests
Small trials explore PCOS ovulation and endometriosis pain.
Study limitations
Trials are small and use different regimens; not a proven treatment.
Medication interactions
May interact with nitrates; check other medicines with a pharmacist.
Safety & when to ask
May cause nausea; ask a clinician before pregnancy use.
Omega-3 / fish oilMixed
What research suggests
Small trials explore period pain, PMS, PCOS and pelvic inflammation.
Study limitations
Different EPA/DHA amounts and short follow-up make results uncertain.
Medication interactions
Discuss with a clinician if taking anticoagulants or before surgery.
Safety & when to ask
May cause reflux; check fish allergy and product quality.
Vitamin DEstablished for specific use
What research suggests
Treating confirmed deficiency supports bone health; studies also explore PCOS, pelvic pain and fertility.
Study limitations
Disease-specific benefits remain inconsistent; correcting deficiency is different from treating PCOS or pain.
Medication interactions
Certain medicines affect vitamin D levels; ask about your medicines.
Safety & when to ask
Excess intake can raise calcium levels; test or assess risk before high doses.
CoQ10Limited
What research suggests
Small PCOS and fertility studies explore metabolic and egg-quality outcomes.
Study limitations
Mostly surrogate outcomes; live-birth benefit is not established.
Medication interactions
May reduce the effect of warfarin; discuss with a pharmacist.
Safety & when to ask
Pregnancy safety data are limited.
CurcuminLimited
What research suggests
Early studies explore PCOS and endometriosis inflammation.
Study limitations
Small trials and poor absorption of many products; symptom benefit uncertain.
Medication interactions
May interact with blood thinners; some formulations affect other medicines.
Safety & when to ask
Concentrated extracts have been linked to liver injury; avoid in pregnancy without advice.
Chromium picolinateLimited
What research suggests
Studied for insulin-related outcomes in PCOS.
Study limitations
Small studies; patient-important outcomes are unclear.
Medication interactions
May add to glucose-lowering medicines; check with a clinician.
Safety & when to ask
Kidney or liver problems warrant extra caution.
CinnamonLimited
What research suggests
Studied for cramps and PCOS metabolic markers.
Study limitations
Small, inconsistent trials; food and extract doses differ.
Medication interactions
May add to the effect of glucose-lowering medicines.
Safety & when to ask
Cassia cinnamon concentrates may contain liver-toxic coumarin.
BerberineLimited High caution
What research suggests
Small PCOS trials explore glucose and lipid markers.
Study limitations
Study quality varies; long-term safety and fertility outcomes unclear.
Medication interactions
Interacts with many medicines, including diabetes medicines and medicines processed by liver enzymes.
Safety & when to ask
High caution: avoid in pregnancy and breastfeeding; speak with a GP, pharmacist or specialist before use.
ResveratrolLimited
What research suggests
Early PCOS and endometriosis studies explore hormones and inflammation.
Study limitations
Small trials; symptom and long-term benefit unproven.
Medication interactions
May interact with anticoagulants and hormonal treatments.
Safety & when to ask
Avoid concentrated supplements in pregnancy without specialist advice.
Probiotics (general)Limited
What research suggests
Small PCOS trials explore metabolic markers.
Study limitations
Strains and doses differ; results cannot be generalised to every probiotic.
Medication interactions
Drug interactions are uncommon; ask a clinician if immunocompromised.
Safety & when to ask
Rare infections are possible in seriously unwell people.
L-carnitineLimited
What research suggests
Small studies explore PCOS metabolism and fertility markers.
Study limitations
Live-birth and long-term outcomes remain unclear.
Medication interactions
May interact with warfarin or thyroid treatment.
Safety & when to ask
Can cause stomach upset; discuss fertility use with a specialist.
SeleniumLimited
What research suggests
Small PCOS studies explore antioxidant and metabolic markers.
Study limitations
Inconsistent results; benefit without deficiency unclear.
Medication interactions
Ask about other mineral supplements to avoid excess.
Safety & when to ask
Too much selenium can harm nerves, hair and nails.
Endometriosis & pelvic pain
None of these supplements has been proven to cure endometriosis.
NAC (N-acetylcysteine)Mixed
What research suggests
Small trials explore PCOS ovulation and endometriosis pain.
Study limitations
Trials are small and use different regimens; not a proven treatment.
Medication interactions
May interact with nitrates; check other medicines with a pharmacist.
Safety & when to ask
May cause nausea; ask a clinician before pregnancy use.
Omega-3 / fish oilMixed
What research suggests
Small trials explore period pain, PMS, PCOS and pelvic inflammation.
Study limitations
Different EPA/DHA amounts and short follow-up make results uncertain.
Medication interactions
Discuss with a clinician if taking anticoagulants or before surgery.
Safety & when to ask
May cause reflux; check fish allergy and product quality.
Alpha-lipoic acidLimited
What research suggests
Early studies explore endometriosis pain and inflammation.
Study limitations
Often combined with other ingredients; effect alone unclear.
Medication interactions
May lower blood glucose alongside diabetes medicines.
Safety & when to ask
Pregnancy safety is uncertain; discuss with a clinician.
CurcuminLimited
What research suggests
Early studies explore PCOS and endometriosis inflammation.
Study limitations
Small trials and poor absorption of many products; symptom benefit uncertain.
Medication interactions
May interact with blood thinners; some formulations affect other medicines.
Safety & when to ask
Concentrated extracts have been linked to liver injury; avoid in pregnancy without advice.
Vitamin DEstablished for specific use
What research suggests
Treating confirmed deficiency supports bone health; studies also explore PCOS, pelvic pain and fertility.
Study limitations
Disease-specific benefits remain inconsistent; correcting deficiency is different from treating PCOS or pain.
Medication interactions
Certain medicines affect vitamin D levels; ask about your medicines.
Safety & when to ask
Excess intake can raise calcium levels; test or assess risk before high doses.
Vitamin CLimited
What research suggests
Studied with vitamin E for endometriosis-related pain.
Study limitations
Combination studies cannot isolate vitamin C's effect.
Medication interactions
May affect certain treatments or tests; ask a pharmacist about high doses.
Safety & when to ask
High doses can cause stomach upset and may raise kidney-stone risk.
Vitamin ELimited
What research suggests
Small trials explore cramps, PMS and endometriosis pain.
Study limitations
Results vary and studies are generally short.
Medication interactions
High doses may increase bleeding with anticoagulants.
Safety & when to ask
More is not necessarily safer; check before surgery or pregnancy.
ResveratrolLimited
What research suggests
Early PCOS and endometriosis studies explore hormones and inflammation.
Study limitations
Small trials; symptom and long-term benefit unproven.
Medication interactions
May interact with anticoagulants and hormonal treatments.
Safety & when to ask
Avoid concentrated supplements in pregnancy without specialist advice.
EGCG / green tea extractLimited High caution
What research suggests
Mostly laboratory and early studies explore endometriosis.
Study limitations
Human symptom benefit has not been established.
Medication interactions
Concentrates can interact with medicines; check with a pharmacist.
Safety & when to ask
High caution: high-dose extracts can cause liver injury; avoid in pregnancy and speak with a GP, pharmacist or specialist.
ZincLimited
What research suggests
Small trials explore cramps and inflammatory symptoms.
Study limitations
Few trials; benefit without deficiency is uncertain.
Medication interactions
Reduces absorption of some antibiotics; discuss timing.
Safety & when to ask
Excess zinc can cause copper deficiency and nausea.
MagnesiumMixed
What research suggests
Small trials explore cramps, PMS and sleep.
Study limitations
Inconsistent forms and doses; benefits are not established for everyone.
Medication interactions
Separates from some antibiotics and thyroid medication; check timing with a pharmacist.
Safety & when to ask
High doses cause diarrhoea; kidney disease increases risk.
Perimenopause & menopause
Hot flushes, sleep and bone health need different kinds of evidence.
Soy isoflavonesMixed
What research suggests
Studied for hot flushes and PMS; effects, if any, are usually modest.
Study limitations
Results vary by formulation and population.
Medication interactions
Discuss with a clinician if taking thyroid medicines or hormonal treatments.
Safety & when to ask
Hormone-like activity; seek advice for hormone-sensitive conditions or pregnancy.
S-equolLimited
What research suggests
Small menopause studies explore hot flushes.
Study limitations
Effects vary and longer-term safety is uncertain.
Medication interactions
Discuss with a clinician if taking hormonal treatments.
Safety & when to ask
Soy-derived, hormone-like activity; ask about hormone-sensitive conditions.
Red cloverMixed High caution
What research suggests
Studied for hot flushes with inconsistent results.
Study limitations
Preparations differ; long-term outcomes uncertain.
Medication interactions
May interact with anticoagulants and hormonal treatments.
Safety & when to ask
High caution: hormone-like activity; avoid in pregnancy and speak with a GP, pharmacist or specialist before use.
SageLimited High caution
What research suggests
Small menopause studies explore hot flushes.
Study limitations
Few robust trials and different preparations.
Medication interactions
May interact with seizure medicines or glucose-lowering medicines.
Safety & when to ask
High caution: some concentrated extracts contain thujone; avoid in pregnancy and speak with a GP, pharmacist or specialist.
Black cohoshMixed High caution
What research suggests
Menopause hot-flush trials show inconsistent benefit.
Study limitations
Product contents vary; long-term effectiveness unclear.
Medication interactions
Check with a pharmacist if taking medicines affecting the liver or hormonal therapies.
Safety & when to ask
High caution: rare liver injury reports and uncertain pregnancy safety; speak with a GP, pharmacist or specialist before use.
HopsLimited
What research suggests
Small studies explore menopausal hot flushes.
Study limitations
Few reliable trials and uncertain long-term safety.
Medication interactions
May add to sedatives or interact with hormone treatments.
Safety & when to ask
Hormone-like activity; avoid in pregnancy without advice.
Flaxseed / lignansMixed
What research suggests
Studied for hot flushes; results are inconsistent.
Study limitations
Dietary seeds and concentrated lignans differ.
Medication interactions
Fibre may affect timing of medicine absorption; ask a pharmacist.
Safety & when to ask
Concentrated extracts have less safety evidence than food amounts.
CalciumModerate
What research suggests
Some trials suggest PMS symptom improvement; essential for bone health when intake is low.
Study limitations
PMS studies vary and supplements are not a substitute for assessing severe PMDD.
Medication interactions
Can interfere with thyroid medicine, iron and some antibiotics; separate doses as advised.
Safety & when to ask
Too much may cause constipation or kidney stones; assess dietary intake first.
Vitamin DEstablished for specific use
What research suggests
Treating confirmed deficiency supports bone health; studies also explore PCOS, pelvic pain and fertility.
Study limitations
Disease-specific benefits remain inconsistent; correcting deficiency is different from treating PCOS or pain.
Medication interactions
Certain medicines affect vitamin D levels; ask about your medicines.
Safety & when to ask
Excess intake can raise calcium levels; test or assess risk before high doses.
MelatoninLimited
What research suggests
Studied for sleep around menopause and in fertility treatment.
Study limitations
Can help sleep timing in some people; fertility outcomes are not established.
Medication interactions
Can add to sedatives and interact with anticoagulants.
Safety & when to ask
May cause daytime drowsiness; pregnancy safety uncertain.
ValerianLimited
What research suggests
Studied for sleep and, less often, period pain or menopause sleep.
Study limitations
Mixed sleep results; very little good pain evidence.
Medication interactions
Can add to sedatives, alcohol and anaesthetics.
Safety & when to ask
May cause drowsiness; avoid driving when affected; pregnancy safety unclear.
St John's wortMixed High caution
What research suggests
Studied for low mood and some menopausal symptoms; not proven for PMDD.
Study limitations
Studies use different extracts; it is not a replacement for mental-health care.
Medication interactions
Major interactions: can reduce effectiveness of hormonal contraception and many medicines, including antidepressants, HIV medicines and anticoagulants.
Safety & when to ask
High caution: serious interaction and pregnancy concerns. Speak with a GP, pharmacist or specialist before use.
MacaLimited
What research suggests
Small menopause studies explore mood and sexual wellbeing.
Study limitations
Few well-controlled studies; hormonal effects uncertain.
Medication interactions
Discuss with a clinician if taking hormone treatments.
Safety & when to ask
Pregnancy and hormone-sensitive-condition safety are unclear.
Fertility & pre-conception
Essential pregnancy nutrients are different from unproven fertility boosters.
Folate / folic acidEstablished for specific use
What research suggests
Preconception folic acid reduces neural-tube defects; Australian pregnancy guidance recommends it before conception.
Study limitations
Prevention evidence is strong, but it does not treat infertility.
Medication interactions
Can mask vitamin B12 deficiency; some medicines affect folate needs.
Safety & when to ask
Ask your GP about the right preconception plan, especially with prior neural-tube-defect risk.
IodineEstablished for specific use
What research suggests
Adequate iodine supports fetal brain and thyroid development in pregnancy.
Study limitations
Benefit depends on intake; excess can also harm thyroid function.
Medication interactions
Thyroid medicines and thyroid disease need individual advice.
Safety & when to ask
Check pregnancy advice with your GP, particularly if you have a thyroid condition.
IronEstablished for specific use
What research suggests
Treating confirmed iron deficiency improves iron stores and can help fatigue; studied before pregnancy.
Study limitations
It does not improve fertility if iron stores are already adequate.
Medication interactions
Interferes with absorption of thyroid medicines and some antibiotics; check timing.
Safety & when to ask
Test first; unnecessary iron can cause constipation and harm.
Vitamin DEstablished for specific use
What research suggests
Treating confirmed deficiency supports bone health; studies also explore PCOS, pelvic pain and fertility.
Study limitations
Disease-specific benefits remain inconsistent; correcting deficiency is different from treating PCOS or pain.
Medication interactions
Certain medicines affect vitamin D levels; ask about your medicines.
Safety & when to ask
Excess intake can raise calcium levels; test or assess risk before high doses.
CoQ10Limited
What research suggests
Small PCOS and fertility studies explore metabolic and egg-quality outcomes.
Study limitations
Mostly surrogate outcomes; live-birth benefit is not established.
Medication interactions
May reduce the effect of warfarin; discuss with a pharmacist.
Safety & when to ask
Pregnancy safety data are limited.
Myo-inositolMixed
What research suggests
Studied for PCOS metabolic/ovulation outcomes and fertility support.
Study limitations
International PCOS guidance finds benefits uncertain; fertility evidence is limited.
Medication interactions
Discuss if taking glucose-lowering medicines.
Safety & when to ask
May cause stomach upset; fertility treatment decisions need individual care.
D-chiro-inositolLimited
What research suggests
Studied in PCOS alone or alongside myo-inositol.
Study limitations
Best ratio, dose and long-term outcomes remain unclear.
Medication interactions
Discuss if taking glucose-lowering medicines.
Safety & when to ask
Pregnancy and fertility treatment use should be discussed with a specialist.
NAC (N-acetylcysteine)Mixed
What research suggests
Small trials explore PCOS ovulation and endometriosis pain.
Study limitations
Trials are small and use different regimens; not a proven treatment.
Medication interactions
May interact with nitrates; check other medicines with a pharmacist.
Safety & when to ask
May cause nausea; ask a clinician before pregnancy use.
MelatoninLimited
What research suggests
Studied for sleep around menopause and in fertility treatment.
Study limitations
Can help sleep timing in some people; fertility outcomes are not established.
Medication interactions
Can add to sedatives and interact with anticoagulants.
Safety & when to ask
May cause daytime drowsiness; pregnancy safety uncertain.
L-carnitineLimited
What research suggests
Small studies explore PCOS metabolism and fertility markers.
Study limitations
Live-birth and long-term outcomes remain unclear.
Medication interactions
May interact with warfarin or thyroid treatment.
Safety & when to ask
Can cause stomach upset; discuss fertility use with a specialist.
Antioxidant combinationsLimited
What research suggests
Various combinations are studied in fertility treatment.
Study limitations
Ingredients differ and live-birth benefit is uncertain; cannot generalise between products.
Medication interactions
Interactions depend on ingredients; review the whole label with a pharmacist.
Safety & when to ask
High doses may be harmful; ask a fertility specialist before using them.
DHEALimited High caution
What research suggests
Studied in some fertility settings, not established as routine care.
Study limitations
Studies are small; live-birth benefit remains uncertain.
Medication interactions
Can interact with hormone therapies and affect androgen levels.
Safety & when to ask
High caution: hormone-like effects and pregnancy risks; speak with a GP, pharmacist or fertility specialist before use.
Vaginal health, BV & recurrent UTIs
Symptoms should be assessed; supplements do not treat an active infection.
Lactobacillus probiotics (strain-specific)Mixed
What research suggests
Certain named strains are studied for bacterial vaginosis recurrence and vaginal health.
Study limitations
Results depend on strain, route and timing; one product's findings do not apply to all.
Medication interactions
Ask a clinician if immunocompromised or seriously unwell.
Safety & when to ask
Not a replacement for testing or treatment of symptomatic BV.
CranberryModerate
What research suggests
Evidence suggests some cranberry products can reduce recurrent UTIs in some people.
Study limitations
Products vary in active compounds; it does not treat an active infection.
Medication interactions
Discuss with a pharmacist if taking warfarin.
Safety & when to ask
Seek medical care for fever, flank pain, pregnancy or persistent urinary symptoms.
D-mannoseLimited
What research suggests
Studied to prevent recurrent UTIs.
Study limitations
A large placebo-controlled trial did not show clear prevention benefit.
Medication interactions
Discuss with a clinician if you have diabetes or take glucose-lowering medicines.
Safety & when to ask
Not a treatment for an active UTI; seek care for fever or flank pain.
Other research
Preliminary research is not a reason to skip screening.
AHCCLimited
What research suggests
One small pilot explored persistent HPV clearance.
Study limitations
Too few trials to establish benefit; it does not replace cervical screening.
Medication interactions
Interactions and long-term safety are not well characterised.
Safety & when to ask
Talk with a clinician before use, especially if pregnant or immunocompromised.
Research & guidance
Ratings describe the evidence for the use studied, not a recommendation to take a product. Read the linked studies and discuss your circumstances with a clinician.
Supplements can interact with medicines and may be unsafe during pregnancy. Ask a GP, pharmacist or specialist before starting one, especially if it has a high-caution label.
Always check with your GP or pharmacist before starting a new supplement.