Eating metformin fart more may be the adverse reaction of the drug, may also be the patient’s intestinal flora imbalance caused by. 1. Adverse drug reactions: when you first start using metformin, you may experience gastrointestinal abnormalities, such as nausea, vomiting, abdominal pain, abnormal gastrointestinal motility, etc. These adverse reactions are generally mild and can usually be relieved on their own. 2. Intestinal dysbiosis: If the patient’s intestinal dysbiosis, it can lead to increased intestinal gas production and farting, which is not related to metformin. Metformin should be used in accordance with medical advice, severe liver and kidney function abnormalities, diabetic coma, alcoholism, acute alcoholism and other patients are prohibited. Taking metformin fart more, it is recommended to clarify the cause and treatment under the guidance of a doctor.