Reacción a "Reactions: Study estimates that replacing red meat consumption with sardines or anchovies could prevent up to 750,000 deaths by 2050"

This is interesting and methodologically sound research in which the authors examine how a reduction in red meat consumption, accompanied by an increase in small fish consumption, could have a favourable impact on non-communicable diseases (ischaemic heart disease, stroke, diabetes and colorectal cancer).

The main limitation of this study is linked to the modelling of aggregate data, i.e. it is not possible to determine whether the theoretical benefits of replacing red meat with small fish in a given country could be applied to a specific individual in that same country.