The present invention relates to a method for analysing and treating human milk to be fed to an infant comprising the steps of collecting own mother's milk, taking a sample of the collected own mother's milk, conducting nutritional analysis on said sample, using the collected own mother's milk as nutrition for the infant and using the collected own mother's milk in the form of at least one of the group of: unchanged own mother's milk, fortified own mother's milk, unchanged components of own mother's milk and fortified components of own mother's milk, wherein said form is chosen depending on at least some of said results of the analysis and said infant's condition, the infants condition being chosen from at least one of the following parameters: infant's age, infant's weight, infant's health, infant's shortcomings, infant's deficiencies, time of day when the milk is fed to the infant.