1. Bloating Often Builds Throughout the Day
As you eat throughout the day, bacteria in your gut ferment carbohydrates and produce gas. Eating quickly can add swallowed air, while constipation or slower bowel movements can make abdominal fullness more noticeable.
That's why you can wake up feeling comfortable and end the day with a tight waistband—even without eating a big dinner. Fizzy drinks, certain foods and changes in bowel regularity can all add to the problem. [4]