No. It has to do with the desire for a single, simple guideline that stands in for a bunch of different factors. It's right there in the article: “Children who

No. It has to do with the desire for a single, simple guideline that stands in for a bunch of different factors. It's right there in the article: “Children who eat foods loaded with added sugars tend to eat fewer healthy foods, such as fruits, vegetables, whole grains and low-fat dairy products that are good for their heart health,” Dr. Vos said. “If your child is eating the right amount of calories to achieve or maintain a healthy body weight, there isn’t much room in their food ‘budget’ for low-value junk foods, which is where most added sugars are found,” Dr. Vos said. This recommendation is coming from the American Heart Association. Diabetes is related to heart health, but they aren't making this recommendation based on an argument about sugar metabolism.