Short-chain fatty acid-producing probiotics: an effective approach for modulating gut dysbiosis and mitigating inflammatory responses.

Alterations in the intestinal microbiome participate with inflammatory responses and associate with pathological outcomes, along with changing the production of myriad metabolites such as short-chain fatty acids. A growing body of evidences have indicated that different dietary components, like polyphenols, may also increase short-chain fatty acids production by gut microbiota, playing a preventative role against various diseases, such as type 2 diabetes (T2D), obesity, cardiovascular diseases (CVD), and even mitigate inflammation attributed to disorders like those observed in COVID-19 and even cancer. Some infectious illnesses alter the microbiome, resulting in a decrease in the production of fermentative products, such as short-chain fatty acids. Managing the microbiome with probiotics to compensate the changes caused by these diseases leads to improvements in the microbiome and a reduction in inflammation. This reduction may even have positive effects in managing cancer. In this review, we compile cutting-edge discoveries on probiotic-derived SCFAs, highlighting their mechanisms associated with their prophylactic and therapeutic potential and their impact across infectious and non-infectious diseases, particularly in mitigating inflammation. Therefore, this review seeks to facilitate the development, evaluation, and clinical implementation of SCFAs-based interventions in future studies, particularly in preventive and therapeutic clinical settings.