Here is an interesting article I found written in Britain on Times Online. Larger Size clothing should come with warning to lose weight, say experts – some very good points and some ridiculous points. I think people in general don’t realize the epidemic of obesity, and what it means to be so.
On the health front here is something interesting for you to read on the consequences of being overweight supplied by the Department of Health and Human Services USA.
Please refer to this link for articles in PDF format from the CDC. Harvard School of Public Health has some very useful information on the Health Pyramid and has also interesting information on Nutrition, it also has a pyramid.
These are only guidelines and you should always speak to your Health Professional for any advice, as you know we are all different and what may work for some, may not for others.