Ok, first of all, BARF.
BK was taking a thyroid med, so he likely has an underactive thyroid, which causes weight gain. (what people used to call a "gland problem") So, he is on the med and the weight is easier to manage. Then he adopts a vegan diet, not on principle, but to keep from gaining weight. Vicious cycle. He definitely seems to have an eating disorder. I know he supposedly has ARFID, apparently related to being on the spectrum, which I'm not fully convinced he is on it, but anyway. The healthiest he looked was at one of his hearings (don't remember which one but it was early on) when he looked to be a healthy weight, and even his hair was nice (it pains me to type that). Perhaps he should have been more obsessed with his teeth, yes, I'm petty.
moo.