HMF Immune combines proprietary human strain probiotics with vitamins C and D to provide targeted support for the immune system. Each convenient, once-daily chewable tablet provides a blend of five research-driven probiotic strains from both the Lactobacillus and Bifidobacterium genera. As nearly 80% of the body's immunologically active cells are located in gut-associated lymphoid tissue, an important connection has been demonstrated between the intestines and the immune system. In addition to supporting gastrointestinal health, HMF Immune includes Bifidobacterium animalis subsp. lactis (Bl-04), a strain that has been shown in a clinical trial to reduce the risk of developing and the duration of upper respiratory tract illness in physically active adults. Additionally, it offers Lactobacillus acidophilus (CUL-60 & CUL-21), Bifidobacterium animalis subsp. lactis (CUL-34) and Bifidobacterium bifidum (CUL-20), which were demonstrated in a clinical trial to support upper respiratory tract health when combined with vitamin C. To further help maintain immune function, HMF Immune contains vitamins C and D. Vitamin C supports the immune system by regulating lymphocyte proliferation, natural killer cell activity and immunoglobulin production, while vitamin D helps control T cell activation, cytokine release and phagocytosis in macrophages. Research demonstrates that vitamins C and D may be especially effective in maintaining immune function in the respiratory tract. This convenient shelf-stable format has guaranteed potency at expiry and may improve patient compliance.