“…In addition to work utilizing in silico and in vitro studies, several animal toxicity studies have demonstrated the safety of B. subtilis for human use [ 15 , 16 , 17 , 18 , 19 , 20 ]. Clinical trials of B. subtilis and W. coagulans (formally Bacillus coagulans ) strain supplementations have also shown safety and tolerance in humans, as well as digestive and GI health benefits in subjects with inflammatory bowel syndrome [ 21 , 22 , 23 , 24 , 25 ], dyspepsia [ 26 , 27 ], as well as individuals with or without mild symptoms of GI distress [ 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 ]. For example, the B. subtilis strain MB40 has been shown to be safe and support GI health in a randomized, double-blind, placebo-controlled trial of 100 healthy adults [ 17 , 35 ].…”