PCOS Supplements: Which Ones Actually Help?
The most evidence-backed PCOS supplements are inositol (especially myo-inositol and D-chiro-inositol in a 40:1 ratio), vitamin D, omega-3 fatty acids, and zinc. They support insulin sensitivity, lower androgens, ease inflammation, and improve ovulation, and they work best alongside diet and lifestyle changes.
Supplements with the best evidence
Not every supplement marketed for PCOS has strong research behind it. These do.
- Inositol (myo + D-chiro 40:1): improves insulin sensitivity and ovulation in multiple studies.
- Vitamin D: low levels are common in PCOS; supplementing may improve insulin and mood.
- Omega-3 fatty acids: help with inflammation and may lower androgens.
- Zinc: supports acne, hair, and androgen levels.
Know what your body needs, every day
PhaseBloom turns your cycle into a day-by-day plan for how to eat, move, rest, and care for your skin, so you stop guessing and start working with your hormones.
Know what your body needs, every day
PhaseBloom turns your cycle into a day-by-day plan for how to eat, move, rest, and care for your skin, so you stop guessing and start working with your hormones.
Frequently asked questions
Does inositol help PCOS?
Yes. Multiple studies show myo-inositol and D-chiro-inositol improve insulin sensitivity, lower androgens, and restore more regular ovulation in women with PCOS. A 40:1 ratio of myo to D-chiro mirrors the body's natural balance.
How long do PCOS supplements take to work?
Most supplements take two to three months of consistent use to show results. Inositol often improves cycle regularity within three to six months when combined with lifestyle changes.