I had a serious intestinal problem due to an over-use of antibiotics caused by my HMO in 2010 after a serious new virus quickly led to double pneumonia. After complaining for two years and ending up with a hospital stay in 2013 to unblock the problem, I gave up on the HMO. Softeners and prunes were band aides, but didn't solve the problem. In 2013, I read an editorial suggesting probiotics as a necessary recovery item from over-medication with antibiotics. Bam! Of course! In the 2970s for several years, I'd made my own kefir, and my memory came back about the effectiveness of it. Probiotics were just coming into popular knowledge and use, so I tried several. When I heard, somehow, about Hyperbiotics, it made a lot of sense to me, an old guy who'd been doing long-distance running and intermittent racing since 1977. I bought my first Pro-Compete I think in around 2016 or 2017, and it has never stopped working excellently for me! It is rare as heck to get either the runs (usually after visiting Cd. Juárez and having too much tequila with too many street sandwiches), or the extremely rare constipation (once or twice a year, usually when we are travelling), which used to be my terrible daily companion. The positive change Pro-Compete has made is proof positive that it works great for me.