After the major premise, look at the topic! Although jelly is low in calories, it is basically similar to yogurt and milk, but its protein and fat are zero, only carbohydrates, sodium and calcium. Of course, it may look good without fat, but there is no protein, which means only carbohydrates provide power.
(You can compare the nutritional composition table of a brand of pure milk and yogurt, and you can see that the nutrition is relatively balanced, and there are fat and carbohydrate in protein, with little difference. )
But then again, isn't it good to rely on carbohydrates to provide energy?
Hmm ... I can't say that, but because the carbohydrates in jelly are basically carbohydrates that we can easily absorb, it can quickly raise blood sugar. When blood sugar rises rapidly, our body will struggle to metabolize and transform. Metabolism needs a lot of energy, so we will feel sleepy, and the transformation will turn into fat "staying" in our body …
Therefore, although its calories are much better than potato chips and biscuits, its essence is similar, that is, "carbohydrates that can quickly raise blood sugar+we eat too much sodium", so it is called junk food.