First, let's analyze the ingredients of what you eat. The whole wheat bread sold by the general bakery is not necessarily the real whole wheat bread. Most of them add caramel or syrup to white flour, making use of the "carbonization" phenomenon at high baking temperature to make the baked bread appear natural light brown and look like "whole wheat bread". Well, you're right. It's caramel and syrup. As a kind of pasta, flower rolls are rich in starch compounds, which make people fat, such as protein, carbohydrates (that is, we usually say sugar), fat and so on.
If you really need to lose weight, eating a lot of this kind of food is really inappropriate and should be avoided, but don't eat too much. If you want to lose weight and shape, you must avoid this kind of thing, eat more fruits and vegetables, eat more fish, eat less and exercise more.