Psyllium is a plant-derived soluble fiber that is commonly used as a bulk laxative for treating constipation. Since psyllium is a type of fiber, some people may experience digestion-related side effects, including gas and bloating, when they consume it. Your body needs some time to adjust to a sudden increase in fiber, so if you are new to psyllium, it is advised to start gradually with small amounts and gradually increase over time until the desired dosage is reached. This can help avoid digestive side effects such as gas and bloating. In some cases, the gas and bloating following psyllium consumption can be indicative of a larger problem. If your symptoms persist, talking to your doctor can help identify any underlying problem and can also recommend ways to reduce these side effects. Options may include increasing your water intake, reducing your psyllium dosage, or switching to a different type of fiber supplement. In addition to drinking plenty of liquids, another general way to reduce the risk of gas and bloating from psyllium is to start with a very small dose and gradually increase it over time. Other tips to reduce potential side effects include adding it to food or drinks that are already high in fiber, taking it with meals, and taking it with plenty of water.