I am a big Ariana Grande fan! This is a video of Ariana Grande's Diet and What she eats in a day for weight. So i recently look at a bunch of celeb thinspo and saw that miley and cyrus and ariana grande lost alot of there weight from going gluten free. Ariana Grande has lost a lot of weight without weight loss surgery. Here are the things that she did to achieve that big transformation. You don't eat restaurant food or prepared food. My grandmother had celiac disease but she did not get it until a few years after they switched to modified wheat in the U,S, I had celiac disease when I was growing up but I don't. I Didn't Have Baby With Rob To Get A Piece Of The Kardashian Name. Will you be shopping her new clothing collab? You, too, can lose weight and get skinny like Ariana Grande if you only change your eating habits and modify your lifestyle.