The myth of 200 daily food decisions finally debunked by science

For years, a widely repeated claim has suggested that people make over 200 food-related decisions every day. This figure, originating from a 2007 study, has appeared in media reports and scientific papers alike. However, new research now challenges its accuracy—and questions whether such a number holds any real meaning. The original claim came from a study by Brian Wansink and Jeffery Sobal, which reported an average of 226.7 daily food decisions. Over time, this was rounded down and reinterpreted as 200 unconscious decisions. Yet researchers led by Maria Almudena Claassen from the Max Planck Institute for Human Development argue that the figure is likely incorrect. Their analysis reveals flaws in the 2007 methodology, particularly a cognitive bias called the subadditivity effect—where participants overestimate when breaking general questions into smaller parts.

The 200 figure has since been treated as fact, shaping discussions about eating habits and health. But Claassen’s team warns that fixating on arbitrary numbers, like 200 food decisions or 10,000 daily steps, can lead to unnecessary self-doubt. Instead of relying on oversimplified targets, they suggest that people are fully capable of making conscious, informed choices about food. To better study eating behaviour, the researchers recommend clearer definitions of what counts as a food decision. They also advocate for multiple assessment methods, such as food diaries or digital tools like cameras and GPS tracking. These approaches could capture the true complexity of food choices, rather than reducing them to a single, misleading number.

The 200-decision claim does not reflect empirical reality and risks distracting from more useful discussions about nutrition. Without a 'magic' number to guide choices, the focus shifts to understanding individual behaviours in context. Researchers now emphasise the need for precise, participant-driven studies to explore how people actually make food decisions.