A milk analyzing system is disclosed, which includes a milk constituent analyzing unit configured to analyze milk from a milking station with respect to a specific constituent of the milk, and a control device communicatively connected to the milking station and to the milk constituent analyzing unit. The control device is configured to retrieve an analyzing appropriateness parameter for each of the animals milked by the milking station indicating an appropriateness of analyzing milk from the animal with respect to the specific constituent. The control device is configured to control the milk constituent analyzing unit to analyze milk from the milking station with respect to the specific constituent when the time elapsed from when the milk constituent analyzing unit last analyzed milk exceeds a threshold time period, irrespective of the analyzing appropriateness parameter for the animal milked by the milking station.