If he weighted 127 on February, it is not possible he gained pounds before he died, because he seemed even thinner on pictures. And I have been both 120 and 220 and I'm sure what I saw on the movie This is it wasn't more then 127, even 120. I just know about weight. That's what I always didn't understand on the autopsy, not saying it's anything fake, but I'm just not sure.
Everyone carries their weight differently. You can't guess someone's else weight based on your body type or by pure appearances. Just because someone looks underweight doesn't mean that they are, just as because someone looks overweight doesn't mean that they are.
I have a cousin who is just as skinny as Michael, rail thin, but he is actually quite heavy. If you tried to pick him up, he isn't as light as you would think and I think he weighs around the 130lbs mark.
Also, I never posted this because I knew I had no such evident to back it up and I didn't want to speculate further on Michael's weight since it wasn't overly important to his death. To me, Michael had always seemed skinner during the press conference. His body looked biggest because of the clothes that he was wearing , but his face looked more sunken in than it did during TII. In fact, you can clearly see the indents in Michael's cheeks, which aren't clearly seen in the month before his death.
As someone who had a mother who has been on every crash diet known to men, I have seen from experience that the first place weight loss/gained are first visible is in the face. Michael's face looks smaller during the conference to the the point his hair looks overly big for his face, which gave him a strange looks to me.
This is my POV and I will leave it at that.
One more thing: It should also be stated that black people, no matter what their body size or type are, tend to be generally heavier than most races. This have to do with bone and muscle structure that was developed during the time blacks were slaves. The fittest and strongest survives, which is why blacks tend to be more physically able: sports, dancing, ect.
So, even if Michael looked skinny and didn't have much fat, he would naturally be heavier than a white person of his same body type.