Cinnamon supplementation may help manage metabolic parameters in polycystic ovary syndrome patients by reducing fasting blood sugar, insulin, LDL-C, total cholesterol, and triacylglycerol levels.
In order to evaluate the effect of cinnamon supplementation on metabolic parameters of PCOS patients, relevant clinical trials were systematically reviewed and analysed. Data was collated from multiple credible databases including PubMed, Embase, the Cochrane library, Scopus and Web of Science, up until August 2019. Studies were selected that provided information specifically about the impact of cinnamon supplementation on metabolic parameters amongst PCOS patients. Standard methods were used to assess heterogeneity, publication bias and sensitivity analysis with five clinical trials pooled together using a weighted mean-difference calculation.
The findings of the meta-analysis showed that cinnamon supplementation does not significantly affect body weight and body mass index in PCOS patients. However, it was found that cinnamon supplementation led to a significant decrease in fasting blood sugar, fasting insulin, and HOMA-IR, along with reducing the serum levels of LDL-C, total cholesterol, and triacylglycerol. Additionally, there was an observed improvement in serum concentration of HDL-C with cinnamon supplementation. Ultimately illustrating that cinnamon supplementation may play a significant role in managing metabolic parameters in polycystic ovary syndrome patients.