Nutrition Now - PB 8 Pro-Biotic Acidophilus - 120 Capsules For over 25 years Nutrition Now PB 8 Pro-Biotic Acidophilus has helped friends and families promote healthy digestion, inhibit the growth of harmful bacteria and support healthy immune function. So don't let rich meals, fast food, preservatives, refined sugars, stress and prescription drugs affect your body's inner balance and digestion. Choose Nutrition Now PB 8 Pro-Biotic Acidophilus, the #1 selling, most recommended pro-biotic acidophilus. Nutrition Now PB 8 Pro-Biotic Acidophilus Highlights: 14 Billion Good Bacteria Wheat Free Gluten Free Egg Free Peanut & Tree Nut Free Soy Free Salt Free Probiotics Probiotic bacteria favorably alter the intestinal microflora balance, inhibit the growth of harmful bacteria, promote good digestion, boost immune function, and increase resistance to infection. People with flourishing intestinal colonies of beneficial bacteria are better equipped to fight the growth of disease-causing bacteria. Lactobacilli and bifidobacteria maintain a healthy balance of intestinal flora by producing organic compounds-such as lactic acid, hydrogen peroxide, and acetic acid-that increase the acidity of the intestine and inhibit the reproduction of many harmful bacteria. Probiotic bacteria also produce substances called bacteriocins, which act as natural antibiotics to kill undesirable microorganisms. Where are they found? Beneficial bacteria present in fermented dairy foods-namely live culture yogurt-have been used as a folk remedy for hundreds, if not thousands, of years. Yogurt is the traditional source of beneficial bacteria. However, different brands of yogurt can vary greatly in their bacteria strain and potency. Some (particularly frozen) yogurts do not contain any live bacteria. Supplements in powder, liquid extract, capsule, or tablet form containing beneficial bacteria are other sources of probiotics.