Soy, Pasture, and Their Link to Rainforest Deforestation

When many people hear that "vegetarian diets are more eco-friendly," their first reaction is to think of soy cultivation as itself consuming vast tracts of land, which casts doubt on the claim. That doubt is understandable, but it overlooks a key fact: the overwhelming majority of the world's soy harvest is not eaten directly by people at all — it is processed into feed for pigs, chickens, cattle, and other livestock.

Pasture Expansion Is a Leading Cause of Rainforest Deforestation

Numerous studies on the drivers of Amazon deforestation identify pasture expansion as one of the leading causes of forest conversion to agricultural land, with cash-crop cultivation — including feed soy — coming second. In other words, what is truly driving the disappearance of the rainforest is, to a great extent, the ever-growing demand for meat, rather than people's habit of eating soy products directly.

Why It Matters to Untangle This Supply Chain

Untangling this supply chain from rainforest to dinner table helps consumers make more accurate judgments:

• The land footprint of eating soy products directly (tofu, soy milk) is far smaller than the path that runs through animal conversion
• Supporting traceable, deforestation-free-certified soy and meat products is an important action consumers can take
• Cutting meat consumption is one of the most direct ways to reduce the indirect demand driving rainforest deforestation
• Supply-chain regulation at the policy level is likewise an indispensable part of the solution

Seeing clearly who is truly consuming the rainforest helps us avoid laying blame on the wrong target.