Obesity is associated with altered gut microbiota and low-grade inflammation. Both dietary habits and food composition contribute to the onset of such diseases. Emulsifiers, compounds commonly used in a variety of foods, were shown to induce body weight gain, low-grade inflammation and metabolic disorders. These dietary compounds promote gut microbiota alteration and gut barrier dysfunction leading to negative metabolic alterations.
Cani, P., & Everard, A. (2015). Keeping gut lining at bay: impact of emulsifiers. Trends in Endocrinology and Metabolism, 26(6), 273-274. https://doi.org/10.1016/j.tem.2015.03.009 (Original work published 2015)