The Heavy Metals in our Food

Did you know that cadmium, a toxic metal used in batteries, is often

found in phosphate-based fertilizers? And did tyou know that heavy

metals from pollution and landfill waste seep into soil, eventually reaching

nearby farms where crops absorb them?

Consuming elevated levels of cadmium is linked to kidney disease, bone

disorders, cancer, and other serious health concerns.

“It’s very difficult to see heavy metal stress in plants,” said Lori Hoagland,

professor of Horticulture and Landscape Architecture at Purdue University.

“Yet, we need to keep these levels low, especially in baby foods. It has

become a growing issue in our food chain.”

In one study, Hoagland’s team found that cadmium-contaminated leafy

greens turned purple. Kale absorbed more cadmium than basil, but basil

showed stronger stress symptoms—only during early development stages.

This research highlights the urgent need to protect and nurture our soils.

One of the best ways? Amend your soil regularly with organic compost

to boost nutrient retention and balance pH—especially important in South

Florida, where soil tends to be alkaline and nutrient-poor.

There are ways to support a healthier food system—from the ground

up.