I appreciate the link to the story--but I don't really see why they think being fat causes the cancers. How, exactly did they figure that out?
Scientists aren't sure why being fat boosts your cancer risk, but suspect it is connected to hormones. As people become fatter, they produce more hormones like estrogen that help tumors grow. People with big bellies also have more acid in their stomachs, which can lead to stomach, intestinal or esophageal cancer.
And are they sure it isn't a correlation? I mean have they ruled out that the cancer may be caused by concentrations of something in the foods we eat?
For example, there's lots of estrogen-like compounds in soy: soy is added to a lot of processed foods--folks who eat a lot of processed foods tend to be heavier than those who do not--you see where I'm going.
Perhaps instead of telling people to lose weight, Americans should demand their government stop giving farmers subsidies to grow soybeans. I do NOT want to start a political conversation--I just don't like seeing "fat" become the new whipping boy for all our ills.
I hate vague stories like this, really.