Both are correct. Milk itself already contains lactose... unsweetened means: no additional sugar has been added

This is the natural lactose. You have to look at the ingredients, sugar should not be listed there

Hello Mystique, the "LC1 Yoghurt nature unsweetened" contains no added sugar. The term "of which sugar" in the nutritional information refers not only to added granulated sugar, but also to all types of sugar contained in a product - including those that occur naturally in fruit (fructose and glucose) or milk/yoghurt (lactose), for example. Whether sugar (or another sweetening food) has been added can be seen from the list of ingredients. Best regards, your M-Infoline team

Thank you both very much! :-)