1. Kyoto Institute of Nutrition and Pathology, 7-2 Furuikedani, Ujitawara-cho, Tsuzuki-gun, Kyoto 610-0231, Japan
2. Non-Profit Organisation, The Japanese Association of Clinical Research on Supplements, 1-9-24 Shihogi, Hidaka-shi, Saitama 350-1248, Japan
3. Broma Laboratory Ltd., 1-26 Kandasuda-cho, Chiyoda-ku, Tokyo 101-0041, Japan
4. Bio-Lab Co., Ltd., 2-1-3 Komagawa, Hidaka-shi, Saitama 350-1249, Japan