1. A method for obtaining basis for infant food, comprising the following steps: a) subjecting the milk starting material microfiltration to obtain a concentrate casein as a microfiltration retentate and a microfiltration permeate containing whey proteins, b) subjecting the microfiltration permeate of ultrafiltration to give whey protein concentrate in the form of ultrafiltration retentate and the ultrafiltration permeate containing lactose and milk salts, c) subjecting the permeate of ultrafiltration nanofiltration to obtain a concentrate in the form of lactose nanofiltration retentate, and the nanofiltration permeate containing the milk salt, d) composing a basis for baby food from a concentrate of whey proteins, lactose and liquid concentrate containing milk-based fats having a total protein concentration of about 1.0 to about 1.5% of whey protein concentrate, lactose and liquid concentrate containing fat based moloka.2. A method according to Claim. 1, wherein the basic milk is skim moloko.3. A method according to Claim. 1, wherein the diafiltration is used in microfiltration, ultrafiltration and / or nanofiltration with water in a dialysis vody.4. A method according to Claim. 1, which does not use ion exchange or electrodialysis for demineralizatsii.5. A method according to Claim. 1, wherein the basic milk is heat treated before microfiltration from about 65 to about 95 ° C for from about 15 seconds to about 10 minutes, preferably at a temperature from about 72 to about 90 ° C for about 15 p.6. A method according to Claim. 1, wherein the microfiltration is carried out at a temperature of from eye1. Способ получения основы для детского питания, включающий следующие стадии:a) подвергание исходного молочного материала микрофильтрации с получением концентрата казеина в виде микрофильтрационного ретентата, и микрофильтрационного пермеата, содержащего сывороточные белки,b) подвергание микрофильтрационного пермеата ультрафильтрации с получением концентрата сывороточног
