Patients with diabetes coexisting with COVID-19 show a high mortality risk and severe complications for the reason that the COVID-19 disease and the diabetes mellitus health condition combine to induce a lower immune system and consequent organ failure fatalities. While a cure has not yet been found for COVID-19, studies have shown that diets that low glycemic index, fiber-rich diet exhibit beneficial effects on improving health conditions in diabetes patients. In this paper, therefore, the nutritional prospects of Musa paradisiacal (M. paradisiacal: plantain) flour-meal for immune system improvement that could be against COVID-19 complications in diabetes patients have been studied. For this, the study elucidates how the essential nutrients in M. paradisiacal could help boost the immune system in diabetes patients that may be living with and without the COVID-19 virus infection. The detailed prospects of nutritional benefits that could be accrued from Musa paradisiacal, therefore, and the attendant health condition improvements, that could essentially reduce risks of COVID-19 complications support the use of the flour-meal for patients living with diabetes.