Crop nutrient density declines significantly since 1960s

A study by Deep Science Ventures (DSV) indicates that the nutritional value of various crops has declined significantly since the 1960s. Research conducted in collaboration with The Mark Leonard Trust found that concentrations of essential minerals, such as potassium, magnesium, copper, and zinc, have dropped by 20% to 50% in certain crops like wheat, apples, carrots, and peas.

The report, titled ‘Hollow Harvests’, suggests that the drive for higher agricultural yields has come at the expense of nutrient density. While cereal yields per hectare have increased by 215% since the 1960s, researchers argue that food security must be measured by nutritional quality rather than just caloric volume. To achieve the same nutrient intake available six decades ago, consumers may now need to eat substantially larger quantities of fresh produce.

Addressing this decline will require improvements in soil health, plant breeding, agricultural market changes, and supportive policy frameworks.