dr. mark manary: 95% of these children are recovering. 95%. that is really something powerful. [singing in foreign language] narrator: and the success rate comes at a fraction of the old therapy's cost. today, saving one child costs the project a total of about $25. project peanut butter has an ambitious vision to save over two million children from severe malnutrition by 2015. rosemary godwa: i wish project peanut butter would grow like the bao bao tree, which start smaller and grows big, big, big, bigger, and biggest. so it can reach every needy child. narrator: the beauty of briend's project is that it's a simple idea writ large. his work has spread to four continents, but it began with a simple formula and a plan to grow. the point is that a good idea is a spark. it's not enough on its own, but it is enough to ignite something bigger, and spark by spark, the world can change. announcer: want to learn more about free lunches, superfood, or anything else you saw here? head over to viewchange.org/tv or you can watch, read, and get involved in projects that are making a real di