Nutritional value of crops declines due to Green Revolution practices

Scientific findings spanning several decades indicate that the nutritional value of fruits and vegetables has declined despite significant increases in food production. While the Green Revolution successfully boosted yields to support a growing global population, this growth was not accompanied by a proportional increase in nutrient density.

A 2004 study analyzing 43 vegetable crops and USDA data revealed significant decreases in essential minerals: calcium fell by 16%, iron by 15%, and phosphorus by 9%. In some instances, nutritional value was up to 38% lower than levels recorded in the 1950s and 1960s.

Experts attribute this trend to the rapid adoption of high-yield varieties, the use of synthetic nitrogen fertilizers, and increased chemical pesticide application. While these strategies increased cereal yields per hectare by 215% with only a 15% expansion in cultivated land, the focus on quantity has impacted the concentration of vital nutrients like iron, calcium, zinc, and vitamin A.