1. Product of whey protein with a ratio of whey protein to casein of about 25:75 to about 50:50 and a total protein content of at least about 20% on a dry matter basis and a protein content of from about 2.5% to about 8% of the total produkta.2 weight. A product according to claim 1, wherein the ratio whey protein to casein is between about 25:75 to about 40:60, preferably about 30: 70.3. A product according to claim 1, wherein the total protein content of the product is from 30% to 60% on a dry matter basis, preferably from 40% to 60% by dry veschestvu.4. A product according to claim 1, wherein the product is a drink having a protein content of from 3.5% to 7% of the total weight produkta.5. A product according to claim 1, wherein the product further comprises added minerals moloka.6. Product according to any one of claims 1-5, suitable for use as a food product, feed product for animals, nutritional product, nutritional supplement ingredient for foods for healthy food product or pharmaceutical sredstva.7. Product according to any one of claims 1-5, suitable for use in the preparation of fermented milk products and / or acidified fresh products, such as yogurt, fermented milk, "Wiley", fermented cream, sour cream, cottage cheese, buttermilk, yogurt and milk drinks, packaging is very small obema.8. A process for preparing a product from a whey protein raw vklyuchayuschiy- processing based on microfiltration of milk for separation into serum ideal as a microfiltration permeate concentrate and casein in the form of the microfiltration retentate, - processing at least part of the microfiltration permeate by ultrafiltration to obtain ultrafil1. Продукт из сывороточного белка с соотношением сывороточного белка к казеину от около 25:75 до около 50:50 и общим содержанием белка по меньшей мере около 20% по сухому веществу и содержанием белка от около 2,5% до около 8% от общего веса продукта.2. Продукт по п.1, в котором соотношение сывороточного белка к казеину составляет от