Dr. Janese Laster, a quadruple board-certified gastroenterologist, obesity medicine and nutrition specialist discusses the impact of processed foods and emulsifiers on gut health. She explains that emulsifiers, such as polysorbate 80 and carrageenan, make foods shelf-stable but can disrupt the gut's mucosal layer, leading to inflammation and symptoms like bloating and constipation. Laster emphasizes the importance of fiber and natural sweeteners over artificial ones. She also highlights the role of GLP-1 in appetite regulation and weight management, noting that a balanced diet rich in fiber, protein, and healthy fats can naturally boost GLP-1 levels. Laster advises against artificial sweeteners and stresses the importance of whole foods for gut health.