Algorithms are widely used to personalize the online experience. They are largely based on algorithmic recommendation systems. While recommending movies or products is relatively simple, proposing food or recipes is more complex. Popularizing grocery delivery services and recipe websites has spurred developments in this area. In this article, we will discuss the use of these algorithms to simplify dietary choices the trade-off between food “popularity” and health the role that nudges can play in this area (and whether they work) specific challenges that still need to be explored This...