Manna Pro Poultry Grit with Probiotics is an effective product for all classes of poultry helping with proper digestion of course grains. Insoluble crushed granite for all classes of poultry. Now includes probiotics to help aid proper digestion. Designed to be fed with coarse grains. For all classes of poultry. Ingredients: Grit, vegetable oil, dried lactobacillus acidophilus fermentation product, dried enterococcus faecium fermentation product, dried pediococcus acidiactici fermentation product, dried lactobacillus brevis fermentation product, and dried lactobacillus plantarum fermentation product.