I know there is no RDA for sugar. But like I said above, does it matter? The answer is no, people will still consume what they want and blame everything but themselves. Not 1 person in that film would look at the sugar amount and say "wow, I better not eat this because I'll gain weight and it exceeds the daily allowance". The film wants to blame sugar because there's no RDA for it. Let's not forget there are RDA's for carbs (sugar), protein, fats, calories, which are all labeled in the food they eat. But seem to ignore all of them, especially the calorie RDA.
You have these people in the film eating a lot of calories and wondering why they're fat. "I swim/exercise a lot, IDK why I'm still not losing weight". Well it's simple, because you're still eating more calories than you're burning (caloric surplus/excess=weight gain).
They don't even have to exercise, but reduce intake and still be able to lose a bunch of weight.
And yes I know there are skinny unhealthy people out there, but this film wasn't about those people. It was about a film maker who wants to give another reason/excuse for these peoples food intake and to make money off the film. I saw what they ate for breakfast and dinner. A bowl of cereal is not a meal for someone who wants to lose weight. Try 2 eggs cooked with Pam, salt and pepper for taste. No juice, fruit, bread, cereal, oatmeal, etc...
My old coach was 1 of these skinny unhealthy people. He watched his diet and ran 5 miles daily because he had high cholesterol. If he didn't do both, he would have a heart attack. His body fat is probably about 12% and he's in his 50's. Or bodybuilders who are 4% bodyfat. But have high cholesterol from steroid usage.