ingestible · for menstrual cramps
Omega-3 Fish Oil
Reviewed by the Nimbera editorial team · Last updated May 2026
How to use
Take 1,000-2,000mg combined EPA+DHA daily throughout the month, not just during menstruation. Allow 2-3 full cycles before evaluating results.
How it works
Omega-3 fatty acids reduce prostaglandin synthesis - prostaglandins are the compounds that trigger uterine contractions causing cramps. Multiple RCTs show significantly reduced pain scores compared to placebo.
Where to buy
Pharmacies and health stores. Nordic Naturals, Carlson, and Thorne are third-party tested brands.
Typical cost: $20-40
Safety notes
May thin blood slightly - stop 2 weeks before surgery. Can cause fishy burps - refrigerate capsules or use enteric-coated versions. Check with a doctor if on blood thinners.
Drug & supplement interactions
- Always tell your doctor or pharmacist about any supplements you take.
- Interactions can occur with prescription medications, blood thinners, and immunosuppressants.
- Herbal remedies can affect how the body absorbs or metabolises drugs.
- Check drugs.com interactions checker before starting.
This information is compiled from primary clinical literature and is for informational purposes only. It is not a substitute for professional medical advice. Read our full disclaimer.