Tasty Training Treats! Denzel’s Training Bites are all-natural, low-calorie & grain-free, with no added nasties whatsoever. They're gently baked in the UK with plastic-free packaging as well as biodegradable & at-home compostable, for happier dogs & a healthier planet. Made with salmon and peanut butter. Our sensitive recipe is high in Omega-3s from added linseed, salmon & coconut oil, which can improve retinal & brain development.