The headline is misleading, right? The weight loss only applies to people with diabetes.
Sounds to me like they can’t make up their minds if weight loss is good or not.
Do Lifestyle Changes Reduce Serious Outcomes in Diabetes?
Hertzel C. Gerstein, M.D.
The New England Journal of Medicine
June 24, 2013 DOI: 10.1056/NEJMe1306987
Might be on many levels. Besides the focus on Diabetes, the study further doesn't seem to address the effect of chronic obesity, only recent weight loss. IOW, do they really mean to imply that a fit person has the same risk factors as a heavy one? Their results could simply mean the damage to their subjects was already done, not that there's no difference in the CV health of different body types.
This reminds me of a Tom Edison quote I once ran across; it went something like: I hate scientists. You ask them a simple question, they fill a blackboard with X's and Y's and give you the wrong answer.