Are probiotics from food and supplements equally effective?
No general recommendation can be made. Most  health-related effects of probiotics are thought to be strain specific, therefore efficacy cannot be determined unless the food or supplement has been appropriately tested in the form in which they are sold (1) or if bioequivalency has been demonstrated. It is not possible to generalize a minimum dose of probiotics, as dosage varies for different probiotic strains and the health