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In recent years, an interest in intestinal microbiota–host interactions has increased due to many findings about the impact of gut bacteria on human health and disease. Dysbiosis, a change in the composition of the gut microbiota, has been associated with much pathology, including cardiovascular diseases (CVD). This article will review normal functions of the gut microbiome, its link to CVD, and potential therapeutic interventions.The recently discovered contribution of gut microbiota-derived molecules in the development of heart disease and its risk factors has significantly increased attention towards the connection between our gut and heart. The gut microbiome is virtually an endocrine organ, arguably the largest, capable of contributing to and reacting to circulating signaling molecules within the host. Gut microbiota–host interactions occur through many pathways, including trimethylamine-N-oxide and short-chain fatty acids. These molecules and others have been linked to much pathology including chronic kidney disease, atherosclerosis, and hypertension.Although our understanding of gut microbiota–host interactions has increased recently; many questions remain about the mechanistic links between the gut microbiome and CVD. With further research, we may one day be able to add gut microbiota profiles as an assessable risk factor for CVD and target therapies towards the gut microbiota.