If so, that's kind of a letdown. Interesting article - short and worthwhile:
Premium Link Upgrade
Excerpt:
Apparently produce in the U.S. not only tastes worse than it did in your grandparents' days, it also contains fewer nutrients — at least according to Donald R. Davis, a former research associate with the Biochemical Institute at the University of Texas, Austin. Davis claims the average vegetable found in today's supermarket is anywhere from 5% to 40% lower in minerals (including magnesium, iron, calcium and zinc) than those harvested just 50 years ago.

Premium Link Upgrade
Excerpt:
Apparently produce in the U.S. not only tastes worse than it did in your grandparents' days, it also contains fewer nutrients — at least according to Donald R. Davis, a former research associate with the Biochemical Institute at the University of Texas, Austin. Davis claims the average vegetable found in today's supermarket is anywhere from 5% to 40% lower in minerals (including magnesium, iron, calcium and zinc) than those harvested just 50 years ago.