The provided text discusses the potential conflict of interest where companies that produce products harmful to the microbiome also offer solutions, like probiotics. It highlights the interconnectedness of oral and gut microbiomes, suggesting that disrupting the former can negatively impact the latter. The author questions the efficacy of many probiotics, citing their sensitivity to manufacturing processes and heat, which may lead to a reduced number of live bacteria by the time of consumption. The text advocates for protecting the natural microbiome rather than using products that indiscriminately kill all bacteria, even beneficial ones. Ultimately, the source encourages consumers to be mindful of product choices that impact their overall digestive health.