For some reason I cannot comprehend, I remembered seeing article about declining amounts of useful nutrients and vitamins in produce, primarily due to soil degradation, and resulting overconsumption, as one of the causes for rampant spreading of obesity. I would like to have a second look on these, but I cannot seem to find any info on the web.

Any links and pics are welcome.

tl;dr People stuff themselves with food because they cannot nourish themselves with it.