Low-carb high-fat advocates generally do not eat legumes due to the high carb content. They get their necessary fiber from non-starchy high-fiber vegetables. However, high-carb low-fat vegans may be interested in this article.
What Kind of Beans Should I Eat? The Great Slow Carb Bean Index
http://www.slowcarbfoodie.com/2011/07/23/what-kind-of-beans-should-i-eat-the-great-slow-carb-bean-index/