L-Glutamine is necessary for intestinal epithelial growth and may be required in larger amounts to promote and maintain a healthy intestinal lining.

Lactobacillus acidophilus is a well-researched bacterium and confers numerous health benefits, including the promotion of immune status, enhanced digestion and decreased susceptibility to seasonal disorders.

Dietary protein digestion may be aided by the presence of Lactobacillus rhamnosus species in the gut. Lactobacillus rhamnosus is also noted for its ability to support levels of the immuno-supportive antibody sIgA.

Bifidobacterium bifidum and Lactobacillus lactis have both been shown to support gut immune function.