Whey preparation obtained by cavitation and uses thereof

A dairy product, comprising:

• a microparticulated ideal whey protein preparation, the microparticulated ideal whey protein preparation being a thickening agent for the dairy product;
• wherein the amount of the microparticulated ideal whey protein preparation in the product is 10-50% based on the weight of the product;
• wherein the dairy product has a hardness of 1000-4000 g·mm;
• wherein the dairy product has a viscosity, and (a) the viscosity is 100-250 mPas and the dairy product is drinkable, (b) the viscosity is 200-4000 mPas and the dairy product is a yogurt, or (c) the dairy product is sour milk;
• wherein the dairy product is produced from skimmed milk and the microparticulated ideal whey protein preparation;
• and
• wherein the microparticulated ideal whey protein preparation is free from caseinomacropeptides and comprises microparticulated whey proteins and β-lactoglobulin polymers having a size of >200 kDa.