Guys, if MJ really was that emaciated, it will be in the autopsy report(s). It's inconceivable it wouldn't be. If it was likely to have been a factor in his death, the coroner will report it. That's his job.
Looking at photos now, or going off another fan's perceptions, is unlikely to get anywhere. It's not like you can really look at someone's size, or even their age, and judge how fit they are - take another MJ, Mick Jagger, 63 in 2005, described as thin, skinny, freakishly skinny, and having a tummy a teenage anorexic would be proud of, but incredibly fit to the extent he did a 5-leg 147-show highly energetic tour over the next two years.
I'm not saying Michael Jackson was as fit as Mick Jagger. I'm not saying he was fine. But looking at photos and speculating with hindsight isn't going to get anyone anywhere.