Composition comprising at least components (i) to (iii): (i) choline in an amount of from 70 - 99 % by weight, (ii) one or more vitamins in an amount of from 0.5 - 25 % by weight, (iii) zinc in an amount of from 0.1 - 10 % by weight, wherein the total amount of choline, the one or more vitamins and zinc amounts to 100 % by weight. The composition may be used for protecting and maintaining liver function in a human, whose liver is subjected to alcohol.