1Meta-Analysis2019
Gorji Z, Varkaneh HK, Talaei S, Nazary-Vannani A, Clark CCT, Fatahi S · Phytomedicine (2019)
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35 peer-reviewed studies
What the evidence says
Most Green Coffee Bean studies are mechanism or observational rather than RCTs that measure a clinical effect — keep findings provisional.
Most evidence is from high-quality meta-analyses and randomised trials published 2005–2026 with a typical study size of 71 participants.
Based on 35 studies · 10 meta-analyses · 19 RCTs · 245 total participants
Confidence
High confidenceBy outcome
12 studies in the last 5 years · Latest meta-analysis: 2025
Gorji Z, Varkaneh HK, Talaei S, Nazary-Vannani A, Clark CCT, Fatahi S · Phytomedicine (2019)
Asbaghi O, Sadeghian M, Nasiri M, Khodadost M, Shokri A, Panahande B · Nutr J (2020)
Chen Y, Zhao Y, Wang Y, Nazary-Vannani A, Clark CCT, Sedanur Macit M · Phytother Res (2020)
Chen H, Huang W, Huang X, Liang S, Gecceh E, O Santos H · Complement Ther Med (2020)
Han B, Nazary-Vannani A, Talaei S, Clark CCT, Rahmani J, Rasekhmagham R · Phytother Res (2019)
Yang Z, Shao Z, Ouyang W, Ying L, Guo R, Hao M · Crit Rev Food Sci Nutr (2024)
Asbaghi O, Kashkooli S, Mardani M, Rezaei Kelishadi M, Fry H, Kazemi M · Complement Ther Clin Pract (2021)
Nikpayam O, Faghfouri AH, Tavakoli-Rouzbehani OM, Jalali SM, Najafi M, Sohrab G · Diabetes Metab Syndr (2020)
Tajik N, Tajik M, Mack I, Enck P · Eur J Nutr (2017)
Bosso H, Barbalho SM, de Alvares Goulart R, Otoboni AMMB · Crit Rev Food Sci Nutr (2023)
Fukagawa S, Haramizu S, Sasaoka S, Yasuda Y, Tsujimura H, Murase T · Biosci Biotechnol Biochem (2017)
Kozuma K, Tsuchiya S, Kohori J, Hase T, Tokimitsu I · Hypertens Res (2005)
Enokuchi Y, Suzuki A, Yamaguchi T, Ochiai R, Terauchi M, Kataoka K · Nutrients (2020)
Nieman DC, Goodman CL, Capps CR, Shue ZL, Arnot R · Int J Sport Nutr Exerc Metab (2018)
Ochiai R, Sugiura Y, Shioya Y, Otsuka K, Katsuragi Y, Hashiguchi T · Nutr Res (2014)
Martínez-López S, Sarriá B, Mateos R, Bravo-Clemente L · Eur J Nutr (2019)
Suzuki A, Nomura T, Jokura H, Kitamura N, Saiki A, Fujii A · Int J Food Sci Nutr (2019)
Mills CE, Flury A, Marmet C, Poquet L, Rimoldi SF, Sartori C · Clin Nutr (2017)
Camfield DA, Silber BY, Scholey AB, Nolidin K, Goh A, Stough C · PLoS One (2013)
Ochiai R, Sugiura Y, Otsuka K, Katsuragi Y, Hashiguchi T · Int J Food Sci Nutr (2015)