We propose a recipe-oriented food logging method that records food by recipe, unlike the ordinary food logging method that records food by name. We also develop an application RecipeLog for this purpose. RecipeLog can create a "skeleton recipe," which is a standardized recipe representation suitable for estimating the nutritional value of a dish. This is represented by a list of ingredients linked to a Nutrition Facts table and a flow graph consisting of cooking actions such as cutting, mixing, baking, simmering, and frying the ingredients. The recipe log allows recipes to be written with fewer operations by editing only the differences from the already registered base recipe. Experiments have confirmed that the recipe log can effectively identify differences in recipes from household to household. The future work is to construct a multimedia recipe dataset consisting of structured recipes and their images using RecipeLog.

Diet management is usually conducted by recording the name of foods eaten, but in fact, the nutritional value of food in the same name varies greatly from recipe to recipe. To know accurate nutritional values of the foods, recording personal recipes is effective but time-consuming. Therefore, we are developing a mobile application "RecipeLog", that assists users to write their own recipes by modifying prepared ones. In our experiments, we show that with RecipeLog users create personal recipes with 45% less edit distance compared to writing from scratch.