(Seemingly, the natural sugar content of the kinds of bananas grown for human consumption is bad for the monkeys' health and can rot their teeth. Over the years the banana has been bred to be sweeter and sweeter, and now there can be up to 12g of sugar per 100g of banana, and the sugar counts for 53 percent of a bananas 105 calories.
Monkeys without bananas! Whatever next: squirrels with nut allergies or +Aladdin Pasha at the movies with no popcorn?)
Source: The Wright Stuff - Channel 5