In the United States, Obesity is one of the leading causes of death, with estimates as high as 300,000 deaths/year. (See https://www.cdc.gov/obesity/data/adult.html ) Deaths from Anorexia are about 150/year (See https://www.ncbi.nlm.nih.gov/pubmed/11513012 ) Yet we're all hypersensitive about telling women they are overweight or obese. It would be like spending weeks in urban schools talking about how to avoid poison…
https://www.cdc.gov/nchs/fastats/deaths.htm says that some 2.6 million Americans die each year. I think it's safe to estimate that more than the 36.5% obesity rate for the entire population applies to this group, implying that some 958 thousand people died while obese (ignoring cause). The top 10 causes of death include heart disease at #1, strokes, and diabetes; these factors alone total to 853 thousand deaths due to conditions largely caused by obesity. Furthermore, studies suggest that some fraction of the almost 600k cancer deaths are caused by obesity. I think you're at least a factor of 3 too low.
I will play devil's advocate for a moment, though, and say that among high school girls, anorexia is a much more frequent problem than death by heart attack. No, it doesn't lead to death, but that doesn't mean it's not a problem.