Sarah Stout learned the hard way that no matter how good something tastes, if your body is allergic to it, you'll pay-whether through exhaustion, pain, or simply dulled senses. But while finding out you're allergic to gluten or dairy can seem like a low blow, it doesn't have to be the end of flavorful food or the beginning of overly complicated cooking.

To address her own health issues, Stout became a nutritionist and naturopath and soon learned how proper nutrition can heal your body from all sorts of ailments. In "Honestly Gluten Free & Dairy Free," she offers a treasure trove of...