The ultraprocessed foods that make up the majority of our diet7403 aren’t just deficient in fiber but include additives that have been shown to muck with our microbes. Even something as simple as salt can affect our microbiome. Approximately doubling sodium intake by adding a teaspoon of salt to people’s diets not only increases their blood pressure and boosts pro-inflammatory cells7404 implicated in autoimmune disease7405 but it rapidly depletes the gut of the good bacteria
