What does the energy in the nutrient composition table mean? Why the percentage?

First of all, nrv (nutrient reference values) is the recommended daily intake standard on the package. Therefore, the percentage of nutrients in nutrient reference values (nrv) is indicated on food packaging, which means that this nutrient accounts for the percentage of daily intake of this nutrient. For example, the energy of a certain food is 65,438+00%, which means that you can get 65,438+00% of the total energy in a day by eating this food. So the sum of percentages has nothing to do with 100%.