Please add Sugar-Free to the Dietary preferences. As a Keto baker I get asked all the time if a product is sugar-free since I can highlight via Dietary preferences gluten-free and even vegan, but the ball was really dropped here not taking diabetics into consideration.
In the meantime, you can use modifiers as a workaround, or include Sugar-Free in the title of description on these items.
P.S. Welcome to the Seller Community ✨