Efficacy of -Acetylcysteine in Polycystic Ovary Syndrome: Systematic Review and Meta-Analysis.

Macarena Carranza, Gonzalo Mariscal, Juan R Viña, Isabel Viña

Journal: Nutrients 2025;17(2):

PMID: 39861414

Abstract

BACKGROUND

Polycystic ovary syndrome (PCOS) is a common endocrine disorder that affects women of reproductive age and requires better treatment. -acetylcysteine (NAC) is known to be beneficial under such conditions owing to its antioxidant potential and insulin-sensitizing properties. The effect of NAC on the reproductive outcomes of PCOS patients was examined in this meta-analysis.

METHODS

In accordance with PRISMA standards, this meta-analysis included studies that compared -acetylcysteine, metformin, clomiphene citrate, and a placebo in patients with POCS. The main indicators were follicular growth, endometrial thickness, and hormone level. The risk of bias was evaluated using the Cochrane ROB2 tool.

RESULTS

Twenty-two studies ( = 2515) were included. NAC was associated with a statistically significant increase in progesterone (SMD 0.95, 95% CI: 0.13-1.77, = 0.02) and endometrial thickness (SMD 0.58, 95% CI: 0.10-1.06, = 0.02) compared to the placebo and other drugs (SMD 0.71, 95% CI: 0.48-0.94, < 0.0001). LH levels were significantly increased by NAC compared to metformin (SMD 0.67, 95% CI: 0.23-1.12, = 0.003). However, no significant differences were observed in the estradiol, SHBG, or FSH levels.

CONCLUSIONS

NAC had a major effect on progesterone, endometrial thickness, and LH levels in women with PCOS. Therefore, it may be a potential treatment option.

Address: IVB Wellness Lab, C/Colón 12, 46004 Valencia, Spain.; Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Instituto INCLIVA, Universitat de València, 46010 Valencia, Spain.; School of Medicine, Valencia Catholic University, C/Quevedo 2, 46001 Valencia, Spain.
Bant logo

© Copyright 2026, Nutrition Evidence

NED wishes to thank the following organisations for their support:

We use cookies to improve your experience and analyze site traffic with Google Analytics. By continuing to use our site, you agree to our use of cookies. Learn more.