Hi, my name is Charlotte Skiles. I'm a nutrition consultant and clinical herbalist, with Eat in Peace Wellness Consulting, located in Austin, Texas, and today's question, is what are probiotics? In probiotics, we're referring to the supplementation of the bacteria, in our GI tract, so in other words, we go to the store, and we buy little tablets, or little pearls, or little capsules or powders, of probiotics, which is referring to the bacteria that exists in our GI. Now, we have more bacteria in us, and on us, than we have cells that make up our bodies, so three to four pounds of bacteria in your gut, performing many vital functions for your body, so the supplementation of these probiotics is very supportive to digestion, and the immune system primarily, which affects everything else, in a positive way. The question becomes, do these probiotics that we supplement with, make it all the way down to the lower GI, after the acid bath that occurs in the stomach? I don't know, but there's some companies out there, that enteric coat their probiotics, to survive that digestive fire, and then there's other companies that are more food like, and you eat the probiotics, and they travel through, so I think it's a beneficial thing for the most part, probiotics, and there's also another set of things out there, called prebiotics. Prebiotics are what feed the probiotics, so prebiotics are generally different types of fiber, that are food, for the bacteria in our GI, so that's about what I have to say, regarding probiotics.