text: where can i find unbiased analysis of nutritional supplement (such as probiotics) quality? i'm concerned that the probiotic (healthy bacteria that benefit the gastrointestinal tract and boost immunity) supplements i purchase actually have live cultures of bacteria in them. i don't want to waste my money. are you seeing results, i have been using probiotics for the last 8 months. i can can tell when i forget to take them within 24 hours, and when i do take them i can eat anything. the most important things to look for are the amount of live cultures (mine has 5 billion) are they acid resistant. pay attention to the expiration date also. i get mine direct from a manufacturer for $12.99 for a 30 day supply and it also has a prebiotic in them to encourage the growth of the probiotic. good luck finding a good one for the price!