Soil Health 101
Beneath every thriving garden is a bustling, microscopic community that keeps plants alive, healthy, and strong. These tiny organisms — known collectively as soil microbes — are the true workforce of the soil. They transform raw minerals into plant nutrition, protect roots from disease, and help your garden become more resilient with every season. Here’s a look at the key players and what they do.
When we sit down to a meal, it’s easy to forget the unseen foundation beneath nearly every bite we take: soil. Healthy, living soil is not just dirt beneath our feet — it’s the starting point for the vast majority of the world’s food supply.
In fact, scientists estimate that around 95% of the food we eat depends on soil.
When most people say “dirt,” they usually mean “soil.” But the truth is, soil and dirt couldn’t be more different—and understanding that difference is the first step to healthier gardens, tastier food, and a thriving planet.
As home gardeners and conscious consumers, we often wonder: Does the fertilizer I use actually affect the healthiness of the food I grow and eat? The answer is yes—substantially.
When we think of human health, we often focus on nutrition, exercise, healthcare, or clean water—but rarely do we think of soil. Yet, soil plays a foundational role in sustaining human life, not just by growing our food, but by influencing nutrition, disease, medicine, and even societal well-being. Here’s how healthy soil supports healthy people—and why its degradation is a growing public health concern.
In recent years, scientists have uncovered a remarkable truth: the health of our gut may begin in the soil beneath our feet. As it turns out, the microscopic life teeming in healthy soils doesn't just support plants — it may also help grow more nutritious food and even influence the microbes living inside us.