“% daily value” is supposedly something like “percent recommended daily value” and it’s a bizarre balance between minimum to avoid deficiencies and maximum to avoid overdose as determined by a board of corporate employees with no training in medicine, diet, or nutrition
so, while there’s no minimum for “total sugars”, most who are actually trained in diet and nutrition seem to agree you really shouldn’t be going over 25–30g total sugars …
FDA does provide a daily value for “added sugars” – 100% daily value is 50g (10-ish teaspoons) which sounds a little excessive to me …