this article sucks. because of widespread issues like hypothyroidism that aren't routinely screened for (in some cases yes but i don't think this is largely the case), there are serious endocrine and metabolic disruptions, so for the author to brush that off in an article that is clearly designed for people who are struggling to lose weight, it's just way off base. there should at least be footnotes for people to have their T3, T4, and TSH checked if they are struggling to lose weight at a caloric deficit.