Every wondered how much added sugar is in a Twinkie? What about a sprinkled doughnut?

When you look at their nutrition labels, you can find information for all kinds of fats and other ingredients, but not for sugar that is added to a processed or prepared food.

The Food and Drug Administration hopes to change that. On Friday, the agency proposed putting added sugar on the nutritional label for packaged foods.

Specifically, the label would include the percent daily value for added sugar, which indicates how much a nutrient in a serving of food contributes to a daily diet, the agency said. Nutrition labels already include the amount of all sugar in a food, but not the daily value or how much is added versus naturally occurring.

The additional information would be similar to the listings for the daily value of sodium and certain fats in nutritional labels.

The proposal is in response to research from the Dietary Guidelines Advisory Committee, which recommends federal nutrition guidelines such as the food pyramid.

The committee recommended that the daily intake of calories from added sugars should not exceed 10 percent of the total calories eaten per day, the FDA said.

Currently the label requires the percent daily value for total fat, saturated fat, cholesterol, sodium, total carbohydrates, dietary fiber, calcium and iron.

The proposal still needs to be finalized. It was a supplement to a March 2014 proposed rule that includes other updates to the nutrition label.