Staple Crops Have Shed Key Minerals Over Six Decades, With Farming and Warming Driving the Decline
Research indicates that cereals, vegetables, and fruits have lost as much as half of certain essential nutrients over the past 60 years. Modern agricultural practices are partly responsible, and climate change is expected to worsen the problem. The decline affects important minerals in foods that form the basis of many diets.
Over roughly six decades, research points to declines in several essential minerals in staple plant foods, including grains, vegetables, and fruits. Some of these minerals reportedly declined by as much as half. Agricultural methods are identified as one contributor, while a warming climate is expected to intensify the trend. Because these foods underpin many diets, the issue touches on everyday nutrition and food systems.
If these declines continue, people who rely heavily on cereals, vegetables, and fruits could face lower mineral intake, especially where diets are less varied. Farmers and food producers may need to adapt practices, while nutrition and public health systems might monitor nutrient levels more closely. The effects may be gradual and uneven, depending on local diets and agricultural conditions, but they could add pressure to efforts to maintain affordable, nutritious food supplies.