This broad-spectrum, 12-strain blend of seven Lactobacillus and five Bifidobacterium species is provided in a base of purified plant cellulose. This formula is free of inulin and other prebiotics and polysaccharides, making it suitable for those who strictly adhere to the Specific Carbohydrate Diet (SCD), GAPS diet, or who have similar dietary restrictions. This potent blend of 25+ billion CFUs offers significant support in favorably augmenting gastrointestinal microflora and enhancing immune responsiveness to pathogens.