Dairy cheese in itself is very good as part of a weight loss diet in that it is very low in carbs and satiating. Of course combine that with junk food that's high in carbs and you negate its benefits. I don't agree with vegan diets. By omitting meat and dairy you will miss out on some nutrients that are essential for the human body. A better option is keto which is more a lifestyle than a diet and as a result is sustainable long-term. But I am glad the vegan diet has worked for you. It's no fun being overweight.