I watched this program last night, and it was the first time I had heard of this disorder.
I have watched a friend get thinner and thinner over the past few years, while juicing organic vegetables and fruits, avoiding meat, wheat, cheese, eggs, sugars, carbohydrates. There should be a balance in food choices - IMHO.
My grandparents and parents all lived to be near or over 90 years old, and ate what they wanted, and had healthy lives.
I am not kidding you. I have a friend who is in Ward 7 (”Wacko Academy”) right now in large part because his disorder takes the form of an obsession with fad diets which he strictly observes and which end by making him goofier by several orders of magnitude than he needs to be.
That said, I have two first cousins, within a year of me in age, who have been “food faddists” for twenty years. As time has gone by, we have all developed health problems associated with aging. They as well as I. No better or worse. Their dietary eccentricities, as I understand them, have more to do with a neurotic form of social control than anything else.