Darford’s Grain and Gluten Free Functional treats are perfect for those dogs that need an additional health boost. Darford’s Grain Free Healthy Digestion Minis feature added probiotics to support your dogs’ immune health. Packed full of healthy, natural ingredients, these tasty minis are sure to be a flavor favorite with your pooch, and they’re oh so good for him, too!. Total Bacillus Coagulans* (min): 50 million CFU per treat.