The effect of green coffee bean extract on cardiovascular risk factors: A systematic review and meta-analysis 

This 2021 comprehensive systematic review and meta-analysis assessed the possible therapeutic benefit of green coffee bean extract on cardio-metabolic markers.  

Fifteen studies (19 arms) consisting of 637 participants were included. The results indicated that green coffee bean extract significantly reduced levels of total cholesterol, fasting plasma glucose, blood pressure, body weight and BMI 

References:

Pourmasoumi, M., Hadi, A., Marx, W., Najafgholizadeh, A., Kaur, S., & Sahebkar, A. (2021). The Effect of Green Coffee Bean Extract on Cardiovascular Risk Factors: A Systematic Review and Meta-analysis. Advances in experimental medicine and biology, 1328, 323–345. https://doi.org/10.1007/978-3-030-73234-9_21