Purina Pro Plan Veterinary Diets Crunchy Bites feline treats have been recognized by the Veterinary Oral Health Council as a product that works effectively to help control tartar and plaque, with a crunchy texture that helps clean teeth and freshen breath. And at less than 2 kcals per treat, they're a great snack for cats in a weight loss/maintenance program or as a calorie-smart option for any cat.