![How a free iPhone app helped me lose 20 pounds – and made what SAS does real](https://blogs.sas.com/content/sascom/files/2011/08/BevAfter-640x336.jpg)
Update: While the SAS analogy still works, my calories-in/calories-out strategy didn't! But today I'm in the best health of my life by using food as medicine, a journey that began by working with a SAS registered dietitian nutritionist. Read this post for a window into my experience. I’m a data-entry