Vitakraft Pet Prod Co Inc Natural Roasties are scrumptious premium dog snacks made of wholesome, quality ingredients. Each treat contains spinach and alfalfa, which are full of antioxidants, as well as Brewer's Yeast and L-Carnitine to support and maintain a healthy immune system. Roasties are oven baked with a light, crunchy texture dogs love. Ideal for all puppies, adults and seniors. No artificial preservative. GMO (genetically modified organisms) Free.