Feb 6, It has been known for some time that asthma patients are more likely than healthy individuals to be overweight. But it has been unclear whether. May 1, A recent study suggests there may be a link to asthma in children who are overweight or obese, especially if there is excess body fat around the. Jul 21, But why is this relevant to people with asthma? mass index, or BMI, of 30 or more (the normal range is , and overweight is ). Member Sign-in Enter this web page. What overwweight do know astyma that obese patients often use more medications, suffer worse symptoms and are less here to control their asthma than patients in a healthy weight range. Recently, experts have begun to recognize and investigate a possible link between obesity and asthma. Toggle navigation. Sinus Infection. Outdoor Air Quality. Why is this relevant to people with asthma? Effect of weight change on asthma-related health outcomes in patients with severe or difficult-to-treat asthma.