Plato Thinker Singles are free from added sugars, artificial preservatives, by-products, artificial colors, soy, wheat, corn, and fillers. Slow-roasted in Plato's US facility, these treats make a great grab-and-go snack or can be snapped into pieces for training dogs of all sizes. Brain-nourishing natural DHA and EPA help support brain function in your pup. Three tasty flavors are available: Pacific salmon, duck, and chicken. (Offer available only to members of Boofy's Astro Loyalty Program. Sign up in-store for free!)