Gastroenterologists, the medical specialists focused on the digestive system, often steer clear of certain foods that can negatively impact gut health. While occasional indulgence is generally acceptable, these experts tend to avoid highly processed items, certain types of meat, and sugary beverages to minimize risks of issues like bloating, gas, and even more serious conditions.
Highly processed protein bars are frequently avoided by gastroenterologists. Dr. Harmony Allison of Tufts Medical Center notes that these bars can contain numerous additives with unknown effects and may lead to bloating and gas. She suggests that protein can be obtained more healthily from sources like milk, peanut butter, nuts, or pumpkin seeds.
Red meat, particularly steaks and burgers, is another category of food many gastroenterologists limit or avoid entirely. Dr. Reezwana Chowdhury of Johns Hopkins highlights that red and processed meats are associated with an increased risk of colon cancer and polyps. These meats are high in saturated fats, and consuming more than 100 grams per day (less than a quarter-pound) elevates colon cancer risk.
Processed meats, including hot dogs and cold cuts, are also on the list of foods to consume sparingly. Dr. Rabia De Latour of NYU Grossman School of Medicine points to data linking the ingestion of red and processed meats four or more times per week to a potentially 20% increased risk of colon cancer.
Deep-fried foods, such as fish or chicken, can also be detrimental to digestive health. Research indicates that frying oils may negatively alter the gut microbiome, potentially contributing to atherosclerosis, a condition characterized by the buildup of fats and other substances on artery walls, which can lead to heart attack and stroke.
Sugary drinks, including soda, are discouraged by many gastroenterologists. Dr. Simon C. Matthews of Johns Hopkins explains that these beverages are linked to chronic conditions like diabetes and heart disease. Furthermore, their carbonated and caffeinated nature can often trigger gastrointestinal symptoms such as bloating, burping, and reflux.
Refined grains, like those found in white bread, are also considered less ideal for gut health. Dr. Shilpa Grover of Brigham and Women’s Hospital states that high intake of refined grains, alongside red and processed meats, is associated with an increased risk of diverticulitis, which are inflammatory pouches in the digestive tract. In contrast, nuts, corn, and popcorn have not been linked to an increased risk of diverticulosis or its complications. Dietary patterns that recommend reducing the risk of conditions such as diabetes, coronary artery disease, and cancer also tend to lower the risk of diverticulitis.