Ya bananas aren’t allowed on the diet. Very high in sugar, high in starch and molds.
Bloating and leaky gut are not that related as far as I know. Leaky gut has to do with allergies and allergic reactions. If you feel immediately bad after eating a banana and get a burn feeling throughout your body, this is an allergic reaction.
Bloating is likely more related to deficiencies in digestive enzymes, not chewing your food enough (are you chewing 30+ times per each bite), lack of stomach acid, liver health, and/or the existence of yeast in the gut. Its also very mcuh related to constipation…if you don’t poop enough, guess what happens?