Exactly. Dried fruits (and dried mangos in particular) may seem healthy, but you should treat them like candy. In fact it's worse than candy - at least chocolate has fat, which makes you feel full, while dried mango is pure sugars and carbs.
You can easily eat 100g of dried mango, not realizing it packs 80g of carbs (!). That's enough to create a huge glycemic spike, followed by an immediate crash half hour later.
In the end of the day, fructose and sucrose are sugars after all, so treat them accordingly.
ps: same for fruit juices. Outside of a few vitamins (which you probably don't need, if you eat a healthy diet), juices are not much better than sodas, and pack a tremendous amount of sugar.
thank you for catching that, i misspoke regarding the fiber. My bad.
One other thing to be aware of is dehydrated foods are less satiating (lacking water). This makes it easier to eat more of them in one sitting and consume more sugar.