I have 100+ pounds to lose and I am dropping it rapidly with yogurt, cream, creme fraiche, pastured sweet butter, cultured butter and sour cream in my diet. I can't quite drain a pint in a meal, and I think you should probably knock that off, but if your carbs are low enough to get you burning fat (in ketosis) then there's a use for these products. Mine is mostly homemade and organic, all full fat, and used daily unless I fast. Some studies show fat loss accelerates with yogurt. One assumption is the probiotics help. I am sticking 90% to cultured products for that reason. If you're not ketogenic, I'd bet they will kill any chance of weight loss. If you are then fats are the fuel you burn.