4. Flatulence

A healthy stomach is capable of making embarrassing noises and sounds. One of them is farting. Flatulence occurs when undigested foods are consumed by microbes. This is what happens when your diet is rich in carbohydrates and fiber. The byproduct of the process is gas production. If your diet is very unhealthy, you may suffer from excessive flatulence. If you release gas no more than 20 times per day, then you can consider yourself a healthy individual.