And yet the average size of humans is increasing.
Not, it is not. Just because humans are two or three inches taller now than they were 200 years ago, it doesn't mean that process will continue and we'll be two or three feet taller in 2,000 years. Or even as tall in one million years as we are now.
www-sciencedaily-com-releases-2011-08-110822154752-htm
And tell you what, it would reverse itself pretty quickly if whole foods replace unsustainable industraliazed farming.