FortiBiotic combines Humiome® Post LB, a clinically studied postbiotic, with vitamin D3 in a convenient daily chew to support immune health. Clinical research has shown Humiome® Post LB helps maintain gut barrier integrity, an important component of overall immune function. By combining complementary, science-backed ingredients in one formula, FortiBiotic helps simplify wellness routines and encourage the consistency needed to support long-term microbiome wellness.