Most supermarket yogurt is a sham. Might as well have ice cream as far as active cultures go. "Made with" active cultures as some say on the label does not mean there's anything left living by the time you put it in your mouth. Plus, even if you eat really active yogurt, you'll only be consuming a small portion of the spectrum of essential microbes. Capsules are the way to go. I have had excellent results from the mail-order Bio Trust product, but the company is worse than the mafia or NRA about bombarding you with propaganda, so bad I blocked them and quit buying. The PB-8 product is something I can get locally, is reasonably priced, and is one of the better probiotic supplements out there as far as I have researched.
Get your gut in order and you'll lose 1-3" in your waist, a few pounds, you'll be able to breath through your nose better, your acne will improve, and other immune system disorders like certain skin rashes and even rheumatoid arthritis can show some improvement. I sound like a freaking infomercial, don't I? NOT intending to, it's just that this info is scarce and the American diet is absolutely destructive of our #1 source of health, those little cooties in tummies. Chlorinated drinking water and Sucralose are a couple of things a lot of us consume throughout the day which in even small amounts wipe out the majority of the good bacteria. So we have heartburn, bloating, bathroom problems, diverticulitis, mood disorders (there's a big one, right there, since Seritonin is produced in the gut), and the list of complaints goes on.....all because we poison out little microbial friends to death just about every time we put something in our mouths. Frequent replenishings from good pro-biotics can sure help, I'm a testament to that.