As scientists study the trillions of bugs, most of them bacteria, living in our intestines—known as the “gut microbiome,” they’re finding that this 3-5 pound community of microbiota has important roles in just about everything that goes on in our bodies. Some scientists are even saying our microbiota may be more important than our genes in determining our health or lack thereof. Recently, they’ve discovered that gut microbiota are intimately involved in determining blood pressure. It’s well-known that excessive salt intake isn’t good for the heart and has been associated with elevated blood pressure. Studies done in the last few years indicate that it’s how salt influences the microbiome that ultimately affects blood pressure. A 2017 study found that when either mice or humans ate too much salt, good bacteria in the gut started disappearing while pro-inflammatory immune cells called TH-17 cells started to rise; and as they did, they raise…

You know that fresh fruits and vegetables are good for you, but when you feed yourself you’re also feeding trillions of guests. These “guests” are the bacteria (aka microbiota, or tummy bugs) that inhabit your intestines. And according to Justin Sonnenburg, PhD, Assistant Professor of Microbiology and Immunology at Stanford School of Medicine, diet is one of the most powerful impacts on gut microbiota, who feed on fiber-rich carbohydrates found in whole plant foods. Why would you want to treat your tummy bugs as honored guests? Because we have an age-old deal with these guys. We provide them with food and a warm place to live; they help us to digest and absorb food, to synthesize vitamins, to produce amino acids, to secrete mucus, to prevent constipation by increasing motility, to create food for intestinal cells, and, perhaps most importantly, to partner with our immune system (more than 2/3 of which is located in the intestines) by degrading toxins and competing with and killi…