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Sustainable & Plant-Forward DietsCitation: Poore J, Nemecek T. "Reducing food's environmental impacts through producers and consumers." Science, 2018;360(6392):987-992.

Why Plant Foods Generally Have a Smaller Environmental Footprint

What Happened

A large life-cycle analysis of food production worldwide found that even low-impact animal products tend to have a greater environmental footprint than plant-based alternatives providing similar nutrition, though impact varies enormously by producer. This underpins much of the "protein diversification" discussion in food systems.

Informational content based on peer-reviewed research and major health authority guidelines — not medical advice.

Why It Matters

This large life-cycle analysis is the empirical backbone behind most 'protein diversification' arguments in food systems — even low-impact animal products generally scoring worse than plant alternatives is a consistent, wide-reaching finding, not a cherry-picked comparison.

Even the lowest-impact animal products tend to score worse than plant alternatives — but production practice still matters enormously.

FET's Takeaway

'Impact varies enormously by producer' is the caveat worth taking as seriously as the headline finding — this is an argument for better production practices and diversified protein sources, not a blanket case against any single food category.

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