And while the core values of his dietary approach haven’t changed—eat healthy fats, lean protein, and lots of veggies—his new book, The South Beach Diet Gluten Solution, is all about the trouble with gluten, and how it can influence digestion, weight-gain, and other health problems for many people. “Gluten is ubiquitous,” says Dr. Agatston, who coined the term “gluten-aware” in the book to describe a way of eating that involves noticing how your body responds to wheat, rather than automatically ditching it. “If you have Celiac, you have to be a gluten detective and avoid all of it,” he explains. “If not, it’s finding your own threshold. Gluten-aware is really a new concept, an important one, and a lot of people will feel better without gluten,” he says. We used our detective skills to snoop inside Dr. Agatston’s very own diet and fridge. Here’s what Well + Good NYC spied in addition to a lack of gluten… More from Prevention:5 Filling South Beach Diet Salads