This iced matcha latte recipe is just 43 calories, and has 0g sugar!We've even given you the option to boost protein with some vanilla protein powder in this matcha iced latte recipe.If you choose to add the protein, it will add 10 grams per scoop... You may need to add a bit more hot water to dissolve the powder, so have some on hand just in case (1/4 cup extra is all you should need).