"The nutritional values of some popular vegetables, from asparagus to spinach, have dropped significantly since 1950. A 2004 US study found important nutrients in some garden crops are up to 38% lower than there were at the middle of the 20th Century." 1/2
2/2 "On average, across the 43 vegetables analysed, calcium content declined 16%, iron by 15% and phosphorus by 9%. The vitamins riboflavin and ascorbic acid both dropped significantly, …"
bbc.com/future/bespoke…