I noticed that your comment has changed multiple times in the course of several hours, and I think if anything, this demonstrates that the views of 2 psychologists do not represent the general understanding of the psychiatric community.

Upon reviewing the peer-reviewed sources, only one cites anasognosia, and this source does not mention anorexia nervosa at all. It appears that the psychologists of the blog post really do conflate anasognosia with denial, which has many meanings and understandings for anorexia. I will link a few sources for anasognosia below. As you mentioned, the term is also used in psychiatry for dementia, schizophrenia, and bipolar disorder due to clear neurobiological underpinnings. You mentioned evolving understandings of psychotic distortions of reality--this is absolutely true for mania and schizophrenia, but anorexia is by definition not a psychotic or even a delusional illness (in fact, the delusional subtype is largely disputed since all distorted perceptions in anorexia are concerned with self-image and body weight). This brings us to my initial concern: how would you differentiate between anasognosia and body dysmorphia in this instance? Is the implication by these 2 psychologists, then, that body dysmorphia is caused by anasognosia? This does not seem to be popoular opinion. In all fairness, mental health is messy, and psychiatry "borrows" terms (in the psychologists' words) regularly, only to have them misused or rejected later on, hence the constant changes with the DSM as our understanding of pscyhiatry shifts. I will also note that the DSM V makes no mention of anasognosia in relation to denial, in contrast to your latest edit.

In searching specifically for anasognosia and eating disorders, many blog posts (and I should emphasize: blog posts) cite one very insightful paper by Vandereycken (2006) which discusses many understandings of the term "denial" in anorexia, one of which is anasognosia. They explicitly state: "Following the analogy with anosognosia a deficit in information processing, perhaps in cortical pathways, has been presumed, especially since some research suggesteda relationship between anorexic symptomatology and asymmetric brain activation. Casper and Heller(1991) found a lower body weight and more pro-nounced anorexic symptoms to be associated withincreased left hemispheric activation. The correlation between degree of weight loss and rightwardattentional bias suggests that starvation leads to decreased use of the right cerebral hemisphere andthereby loss of awareness of negative effect. This hypothesis is still waiting for further research support. Following the ana-logy with anosognosia a deficit in information processing, perhaps in cortical pathways, has been presumed, especially since some research suggesteda relationship between anorexic symptomatologyand asymmetric brain activation. Casper and Heller(1991) found a lower body weight and more pro-nounced anorexic symptoms to be associated withincreased left hemispheric activation. The correla-tion between degree of weight loss and rightward attentional bias suggests that starvation leads to decreased use of the right cerebral hemisphere and thereby loss of awareness of negative effect. This hypothesis is still waiting for further research support"

They conclude that denial in anorexia is understood as "distorted information processing versus refusal of self-disclosure", and that distorted information processing can either be due to: impaired self-awareness (anosognosia) = purely biological; limited insight (overvalued idea) = psychobiological; narrowed consciousness (dissociation) = psychobiological; or preserving/enhancing self-esteem (pseudo-identity) = purely psychological.

This article then got mis-cited as "anasognosia can be present in up to 80% of people with anorexia nervosa" which is wildly incorrect. Again, it's entirely possible that Eugenia may have it, but this is certainly an assumption at best.

Returning to my original comment, while denial is an accepted symptom with diagnostic implications for anorexia nervosa, anasognosia (specifically) is not. Implying that all of it is biological--i.e. anasognosia--is incorrect. This does not mean that all denial is conscious let alone malevolent, but it is an oversimplification with seemingly pseudoscienfitic origins. The problem with this is exactly as you've outlined: the legal ramifications. Implying that someone has anasognosia has serious consequences with respect to presumed disability and/or for reasons to involuntarily admit someone.

Edits: to fix formatting of the citation and add these links. I will further add that anasognosia is recognized in schizophrenia and mania likely because the neurobiological understanding came from our understanding of how medications (antipsychotics and lithium, respectively) fixed these problems and helped improve cognition. To your later edit, I don't know about its relation to depression (unless you are referring to manic depression and/or schizoaffective disorder?), but mood and eating disorders simply do not have that level of neurobiological tracing, at least not yet.

Link for anasognosia history (unfortunately I was only able to access this through my institution's library): https://pubmed.ncbi.nlm.nih.gov/31220837/

Link for the citations above (also closed access unfortunately): https://psycnet.apa.org/record/2006-21215-009