This is irresponsible advice because nutrition is not a solved problem.

As long as we fail to solve it, as in, correctly predict the short, medium, and long term effects on heath and well being for people across all variations of genome and microbiome, not to mention activity level and medical conditions, people need to evaluate their food intake individually.

Guilting people away from “taking care” of themselves based on a subset of the medical and nutritional literature to achieve some global carbon emissions target is not a reasonable strategy, in my opinion.