When Confidence Misleads: Rethinking Gluten-Free Choices in the General Population

In recent years, gluten-free products have seen a surge in popularity, often embraced by individuals with no medical need for avoiding gluten.  Our study investigates this phenomenon and reveals that the decision to follow a gluten-free diet is frequently driven not by health requirements, but by a misplaced sense of nutritional competence. The data show that individuals who are most confident in their nutritional knowledge are not necessarily those with the strongest understanding. On the contrary, overconfidence appears to be a key driver behind the unnecessary consumption of gluten-free foods. This cognitive bias, known as the Dunning-Kruger effect, is especially […]