Reduction Effect of Ilex paraguariensis Leaf Extract (MATESOL®) on Abdominal Fat Area in Healthy Subjects ―A Randomized, Double-blind, Placebo-controlled Parallel-group Comparison Study― 【2024】 Tomoko Kuniyoshi1, Haruka Oshikiri1, Yukiko Kobayashi1, Toyotada Ashino2, Ikuo Fukuhara3, Jinwei Yang1* Tokiwa Phytochemical Co., Ltd. New Drug Research Center, Inc. Fukuhara Clinic Jpn Pharmacol Ther 52(9), 1067-1076(2024)