There are lots of articles about how obesity is costly , but not so many comparative statistics . Doing a quick search I could only find this onehamburg . d e f i l e a d m i n b w l r echtderwirtschaftinstitut 20130924 D G e p i P o s t e r K o s t e n v o n A d i p o s i t a s i nDeutschlandTobiasEffertz . pdf , published by the university of Hamburg . The text is in German but the bottom left diagram is enough to support my argument . It compares the cost of notobese people red line to the cost of people in different stages of obesity orange line is the highest stage . And it clearly shows that even at the age of 83 obesity is more costly . Not to be the guy that tries to debunk someones opinion with one source alone but hey , if you can show me statistical data against my point be my guest .