Banana is not bad, misconception on diet.

One of the misconceptions on the diet issue is the good and bad of eating a banana

banana and health

just reduce the calories to compensate

for example eating rice  can raise your blood glucose more than the similar quantity of  banana

read the glycemic index

low carb diets

diabetic patients, please note the above discussion on eating the banana and kindly discuss with your diabetologist for yourself!

warm regards

chockalingam