Probiotics are live bacteria and yeasts that are good for your health, especially your digestive system. ... Probiotics are often called "good" or "helpful" bacteria because they help keep your gut healthy... Most people do! It can cause leaky gut, hormone imbalance and digestive disease. 

Physician Naturals Mega Probiotic 10-20 also contains a highly concentrated naturally source of prebiotics, NutraFlora® FOS, or non-digestible carbohydrates, that support healthy levels of beneficial bacteria. Manufactured exclusively using ViaBlend Gastric Acid Bypass Technology, which protects live bacteria from stomach acid and carries to the intestines. - See more at: http://www.physiciannaturals.com/probiotics-digestive-10-20-acai-cleanse-fruits-veg-103/mega-probiotic-10-20-w-nutra-flora-60-veg-caps-149.html