Well, I will leave the question of whether or not obesity is a symptom or a cause (i.e., the real problem is that what gets us fat is what gets us sick) aside for now (tho I would encourage you to check out Gary Taubes here: <a href="http://www.dhslides.org/mgr/mgr060509f/f.htm">http://www.dhslides.org/mgr/mgr060509f/f.htm</a> -- we can not solve the obesity problem because our hypothesis is flawed).