A composition, comprising: a) maltose, glycerol, an amino acid, an oligopeptide, or a mixture of one or more thereof, in a content of 5 to 75 wt-% of the total weight of a)-d), b) glucose in a content of less than 1/2 the content of maltose, and in a total content of less than 5 wt-% of the total weight of a)-d), c) glucan molecules of DP 3 and DP 4, taken together, in a content of less than 1/2 of the content of maltose, d) glucan molecules of DP>;4 in a content to give 100 wt-% together with a), b) and c), wherein glucan molecules of DP>;10 are present in an amount of 15-80 wt-% of the total weight of a)-d), glucan molecules of DP>;24 are present in an amount of 2-60 wt-% of the total weight of a)-d), glucan molecules of DP>;55 are present in an amount of less than 15 wt-% of the total weight of a)-d), a method for producing it and its use as a medicament or for use in therapy, particularly in peritoneal dialysis.