http://sharon851.pixnet.net/blog/post/76413849-%E3%80%90%E7%98%A6%E8%BA%AB%E8%A7%80%E5%BF%B5%E3%80%91%E5%88%86%E4%BA%AB%EF%BC%9A%E4%BD%8E%E8%83%B0%E5%B3%B6%E7%B4%A0%E6%B8%9B%E8%82%A5%E6%B3%95-%E4%BD%8Egi-%E4%BD%8Egl
http://www.dummies.com/how-to/content/the-gl-diet-for-dummies-cheat-sheet.html
http://www.health.harvard.edu/healthy-eating/glycemic_index_and_glycemic_load_for_100_foods