by Dr. Christine Gonzalez
Seen the latest commercial or advertisement for Dannon Activia‚? This is a prime example of the increasing trend of functional foods to hit the market place. As a result, the health benefits of probiotics are coming to the forefront. Research on probiotics is being conducted at Tufts University, Ohio State University, the Mayo Clinic College of Medicine, Johns Hopkins University, and the New England Medical Centers in Boston.
Simply put, probiotics are the “good bacteria”, part of the normal gut flora that help to maintain balance in your gastrointestinal (GI) tract. When not kept in check, “bad bacteria” (or yeast such as Candida) can overgrow and cause infections or digestive problems. Life in modern society constantly exposes us to large amounts of stress, toxins, and medications that can compromise our healthy gut flora. A common way is through antibiotic usage. In fact, it may take up to three months for normal gut flora to fully recolonize after a single course of antibiotics. There are different types of probiotics including several species of Lactobacillus (acidophilus being the most well-known), Bifidobacterium, and Saccharomyces (a nonpathogenic yeast unrelated to Candida).
Some of the health benefits of probiotics include protection against GI tract infection, overgrowth, and imbalance; immune system support; support of digestion and the absorption of nutrients; and support of intestinal mobility. About 60-70% of our immune system cells are associated with our GI tract, so it makes sense that a healthy gut keeps us healthy. The general mechanism of action of probiotics is competition for attachment sites in the GI tract. Basically, they keep the bad guys from taking over. Other actions include production of digestive enzymes, vitamins B and K, and compounds that inhibit the growth of pathogenic organisms.
Other foods, aside from yogurt, that contain probiotics include buttermilk, fermented cheeses, traditionally made sauerkraut, kefir, kombucha and miso. Probiotic supplements provide higher dosages in capsules, powders, drinks, and even probiotic-lined straws for kids. These may be necessary for replenishing a significant depletion. Ready to support healthy gut function and immunity? You can start by increasing your dietary intake of probiotic-rich foods or the addition of a quality supplement (under the guidance of your health-care practitioner). Who knew bacteria could be good after all?