Draco frowned for a moment, before realising that Harry had no way of knowing of his allergies. Sure, he knew that he looked like the type the go vegan, but he honestly didn't really have the patience for it. You had to take way too much care, and it was not at all worth the hassle. "I am lactose intolerant," he stated with a shrug, and a soft shake of his head. "Pansy wanted me to go vegan with her once, but I told her to keep her crazy model stuff far away from me. I do not want to be involved," he added, smiling softly. He figured that Harry hadn't heard from Pansy through all these years, just like Draco hadn't heard from any of the Gryffindors, nor most of the Slytherins for that matter, but that wasn't the point.