Guy Raz interviews the world’s best-known entrepreneurs to learn how they built their iconic brands. In each episode, founders reveal deep, intimate moments of doubt and failure, and share insights on their eventual success. How I Built This is a master-class on innovation, creativity, leadership and how to navigate challenges of all kinds. 
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Growing up Danielle Walker’s family often convened for big meals prepared by her Italian grandmother Grandma Marge. Back then Danielle enjoyed a wide variety of food without restriction; but she began experiencing severe abdominal pain in her 20s that ultimately led her to totally transform her diet—cutting grains lactose sugar and more. 

As Danielle found relief in this approach—and realized that others with similar ailments could as well—she began compiling her recipes in an online blog 

HIBT Lab! Against All Grain: Danielle Walker

How I built this