How Obesity and Diet Impact COPD

the MPR take:

How do obesity and diet affect chronic obstructive lung disease (COPD)?  A new study published in the International Journal of Chronic Obstructive Pulmonary Disease reviews the impact of obesity and dietary patterns on COPD development and progression. Obesity has been shown to contribute to decreased lung function and increased prevalence of lung disease, but it may also have protective effects.  Known as the "obesity paradox," researchers are still evaluating how this effect may protect against mortality in severe COPD.  Certain foods, such as cured meats, may contribute to the development of COPD, while tea, which is rich in antioxidants, has been shown to be inversely related to COPD development. The relationship between lung function and vitamin C intake has also been investigated, with higher intake being associated with higher FEV1 levels. While a causal relationship between diet, obesity, and lung function has yet to be proven, data does exist suggesting that these three things are linked. Healthcare professionals treating obese COPD patients should consider implementing a weight loss program without the loss of lean body mass in order to preserve the protective effects associated with BMI. While micronutrient supplementation cannot be recommended due to a lack of sufficient evidence, COPD patients may still benefit from a healthy diet.

Abstract: The global increase in the prevalence and incidence of obesity has called serious attention to this issue as a major public health concern. Obesity is associated with many chronic diseases, including cardiovascular disease and diabetes, and recently the role of overweight and obesity in lung disease has received new interest.