His 20 min. TedTalk is excellent. I need to work on more bean recipes!
By adding his talk, Okinawan (in Japan) eat a lot of sweet potatoes. Japanese in general eat more sweet potatoes compared to we are in U.S. Japanese enjoy its naturally sweet taste and plenty fiber perfect for bowel cleansing effect. The local Whole Foods sells purple colored sweet potatoes labeled as “Japanese Yam”. You may try one day! Either you can be roasted or steamed.
