Abstract: A method of providing a subject with a personalized diet comprises: receiving from a graphical user interface (GUI) at a remote location a list of food items defining a meal, obtaining a set of subject descriptor features specific to the subject, and constructing a meal vector based on the list. Similarities between the meal vector and vectors in a database of food vectors are calculated, and at least one database vector is selected based on the similarities and the set of subject descriptor features. Based on the selected database vector(s), an identification of at least one food item is transmitted to the remote location for displaying the identification on the GUI as one or more food item(s) that is an addition to the meal.