I know this may be one of those things you simply can't skimp on, money wise. Any reputable doctors--or you--finding a great probiotic so one can get about 40+ billion CFU a day for a reasonable price? If there is a non-designer brand that is affordable and good I want to know about it. I've taken Therbiotic Complete (25 Billion CFU) active cultures, many strains. About $28 for 60 caps. I'm trying Ortho Biotic (20 Million CFU) many strains and it has Saccharomyces boulardii. About $36 for 60 caps. VSL3 is good, but so expensive. Oi. All so expensive. I see "Ultimate Flora" by Renew Life has 50 billion CFU. $56 from Vitamin Shoppe. What are you taking?