Opuwari, Chinyerum S.Monsees, Thomas Klaus2020-12-102020-12-102020Monsees, T. K. et al. (2020). Green tea consumption increases sperm concentration and viability in male rats and is safe for reproductive, liver and kidney health. Scientific Reports ,10(1),152692045-2322https://doi.org/10.1038/s41598-020-72319-6http://hdl.handle.net/10566/5498Green tea is a popularly consumed beverage worldwide and contains polyphenols, whose antioxidant activities could improve sperm parameters and fertility thereof. We investigated the effect of green tea on the male rat reproductive system as well as its safety. Male Wistar rats were administered 2 and 5% aqueous extract of green tea for 52 days’ ad libitum, while the control group received tap water. Total polyphenol, flavanol, flavonol and soluble solids significantly increased in a concentration-dependent manner in vitro (P < 0.01). Weights of body, testis, epididymis, prostate gland, seminal vesicles, and liver, serum levels of testosterone, ferric reducing antioxidant power, creatinine, and sperm motility, remained unchanged (P > 0.05).enGreen tea consumptionMale ratsSperm concentrationLiver healthKidney healthArticle