5. Autonomic Nervous System Maintenance
During normal daytime activity, your body keeps the anal sphincter muscles closed because you are more active. Then, “at night, after work or school, you become more relaxed and the sphincter muscle opens, ready to release the gas accumulated during the day,” says Christine Lee M.D., a gastroenterologist at the Cleveland Clinic. This can be why you may fart more so at night.
4. Look at What Food You Are Eating
Many foods and beverages can cause more gas. High-fiber foods are more fermentable like beans, legumes, some fruits, onions, and fried foods. Carbonated drinks and lactose-containing foods, like dairy, tend to increase gas for some people. Be aware of what foods affect you most and decrease or avoid them, especially late in the evening.
You can also try the low FODMAP diet, which helps people who continually have gas and digestive discomforts.
3. Sugars Can Give You More Gas
Foods high in certain sugars, like high fructose corn syrup, xylitol, sorbitol, and artificial sugars will produce more gas.