American Health The Original Acidophilus. Aid in maintaining favorable intestinal flora. A natural balance of specially selected strains of acidophilic cultures. Certified guaranteed billions of organisms. American Health Acidophilus liquid is composed of hardy, viable balanced cultures of specially selected strains of lactobacillus cultures in a natural palatable base of predigested milk solids (which makes it suitable for most lactose intolerant individuals). The organisms involve three strains of Lactobacillus acidophilus (including the original Metchnikoff strain and a special strain from the Pasteur Institute), a strain of Lactobacillus bulgaricus, a strain of S. thermophilus and a strain of B. bifidum. When packaged, each tablespoonful provides approximately 5 billion "friendly" organisms. Aids in establishing and reinforcing favorable intestinal flora.