Nutritional value of bananaServing size 100 grams; 1 large, ripe banana Improves digestion: The carbohydrates and dietary fiber present in bananas are known to control bowel movements which ultimately aids in proper digestion. Banana is known to be good for those who are trying to get away from chronic constipation due to pectin content. Banana is also known to help those reduce stomach ulcers and reduce the chance of developing gastric cancer. This fruit is also the best possible natural treatment for those suffering from acidity due to the antacid effect it has. Avoid smoking: all those who have tried to quit smoking but have not been able to get rid of this habit due to feeling unwell, irritation, stress and stomach cramps. Everyone who really wants to quit smoking should try banana due to the presence of potassium and many other important vitamins which are known to give a calming effect to the brain whenever there is a headache or stress, which is soothed by nicotine among smokers. Banana is also known to give instant energy to the body that feels dull from those who are deprived of smoking and weakened legs