which Hans-Karl discounts

Ähm, I am not discounting it - there I don't have his blood samples to investigate, it is mood, my point was - despite you have a metabolic disorder, which may make it easier to gain wait, the usual way putting up weight is too much calories as intake.

Looking at his figure, spindly legs and beer keg belly may point in the direction of metabolic syndrome, but that remains pure speculation. But even if you have it - people are not doomed to gain wait automatically, in case they pay attention they are able to control it.

So Boney became obese, despite his adepts claim he isn't eating a lot, he is eating little - this I certainly refute, so at one point in his career he became fat and did just accept it - it would be interesting to see his brothers how they changed over the years.