The metabolic syndrome is a complex entity comprised of multiple cardiovascular risk factors grouped in a single individual, contributing to an increased rate of cardiovascular events which goes beyond what would be expected given the impact of each individual risk factor. It is a multifactorial condition whose complete pathogenesis is not yet fully understood. Several studies have shown that not only the intestinal microbiota and dysbiosis may play a role in its pathogenesis, but also that modulating said microbiota may play a role in treating or at least ameliorating the metabolic syndrome. The purpose of this article is to review some of the most recent evidence linking the gut microbiome and the metabolic syndrome to help further understand this relationship and try to identify further research directions.