They are made with highly soluble ingredients so your dog can break them down for easy digestion, making them more digestible than premium dry dog food. (herepup.com)
Furthermore, the DNA will not break down for years, making the markers useful for items with long shelf lives. (scientificamerican.com)
Instead of breaking them down for you I've linked them up so you can read about them and their benefits. (davedreas.com)