Packaging paper for food, with a basis weight from 20 g/m2 to 50 g/m2, comprising cellulose fibers and one or more filler materials, wherein the total amount of filler materials is between 5% by weight and 20% by weight with respect to the weight of the packaging paper, wherein the packaging paper comprises a sizing agent that is contained in such an amount that a relative water absorption of 0.4 to 0.7 is obtained on both sides, wherein the relative water absorption is defined as the quotient of the Cobb60 value, determined in accordance with ISO 535:2014, and the basis weight, has a coating on at least one side that comprises nanoparticles of a starch, wherein the coating contains between 1 g/m2 and 6 g/m2 of said nanoparticles, does not contain any compounds with the structure CF3(CF2)n(CH2)mX, wherein n=5 or n=7 and m=0, 1 or 2 and X is a hydroxyl group (X═OH) or a carboxyl group (X═COOH), or the proportion of such compounds in the total mass of the packaging paper is less than 0.1‰, and has a resistance against greases and oils of 6 to 12, described by the KIT level in accordance with TAPPI T559 cm-12, wherein in the test in accordance with TAPPI T559 cm-12, the at least one side coated with said nanoparticles is exposed to the test liquids.