The experts discussed how to define probiotics. A definition widely used, developed by the World Health Organization and the Organization for agriculture and the power of the United Nations, is that the probiotics are live microorganisms which, when administered in adequate amounts, confer a benefit to the health of those who take them. Probiotics is not the same as Prebiotics non digestible food ingredients that selectively stimulates the growth and/or activity of beneficial microorganisms in the person. When the probiotic and the prebiotic blend, they form a synbiotico. Probiotics are available in foods and dietary supplements (per example, capsules, tablets, and powders) and in some other ways also. Examples of foods that contain probiotics are fermented milk and non-fermented yogurt, miso, and some juices and soy beverages.
Probiotic foods and supplements, the bacteria could have been present originally or having been added during the preparation. Most probiotics are bacteria similar to those found naturally in the intestines of people, especially in breastfed children (who have a natural protection against many diseases). The most common bacteria come from two groups, lactobacillus and Bifidobacterium. Within each group, there are different species (e.g., lactobacillus acidophilus and Bifidobacterium bifidus), and within each species, diverse strains (or varieties). Some common probiotics are yeasts, which are different from bacteria. Some probiotic foods date back to ancient times, such as fermented foods and cultured milk products.