“…Obesity and diabetes mellitus (DM) are independent, significant risk factors for mortality in coronavirus disease 2019 (COVID-19) [ 5 , 16 ]. The presence of excessive body mass index (BMI) and type 2 DM in patients with severe COVID-19 is quite prevalent among other comorbidities, including advanced age, hypertension, and heart, lung, kidney, liver, and cerebrovascular diseases [ [17] , [18] , [19] , [20] , [21] , [22] , [23] , [24] , [25] ]. In addition, physical inactivity or sedentariness commonly observed in these subjects contributed to impaired immune function and increased morbidity and mortality in COVID-19, regardless of the presence of insulin resistance [ 26 , 27 ].…”