Reducing the environmental footprint of our food system with fermentation-derived ingredients

Fermentation-derived food ingredients can be produced at a fraction of the climate, land, water, and pollution costs of conventional animal-derived alternatives–while matching their nutritional and functional performance. As protein consumption grows worldwide, fermentation offers an efficient, scalable route to reducing the environmental impacts of food production.

A systematic review of life cycle assessment (LCA) evidence conducted by the Good Food Institute, synthesizing findings from over 30 peer-reviewed and industry publications, confirms these advantages across three fermentation pathways: biomass fermentation, precision fermentation proteins, and microbial oils. 

Environmental advantages of fermentation-derived ingredients—including lower greenhouse gas emissions, land use, and water use—prevail across a range of inputs and production methods. These benefits are real but not automatic. Investments and policy action in next-generation feedstocks, production infrastructure, and renewable energy can simultaneously lower both costs and environmental impacts.  

Key findings

  • Biomass fermentation ingredients have consistently lower land and water use, and fewer GHG emissions than beef and pork. 
  • Precision fermentation proteins offer up to 97% lower GHG emissions, up to 99% lower land use, and upwards of 96% lower water use/scarcity. 
  • Microbial omega-3 oils can relieve pressure on overfished marine ecosystems and offer up to 99% less GHG emissions, eutrophying water pollution, and air pollution than farmed fish oils. 
  • Environmental performance of fermentation-derived ingredients varies significantly depending on the electricity and feedstock sources, underscoring their importance in bioprocess design and commercial site selection.

As a nonprofit, our reports are only possible thanks to our generous donors. If you appreciate this open-access research, please consider supporting GFI today. Gifts to GFI help the alternative protein sector get closer to its full potential in addressing today’s most pressing global issues—climate change, biodiversity loss, food security, and more.

Download the reports

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Environmental fact sheet

Explore the comparative environmental benefits of fermentation-derived ingredients across microbial biomass, precision fermentation dairy and egg proteins, and microbial omega-3 oils.

Sci24034 pb lca page graphics card3 policy action paper 1

Policy action paper

Explore this action paper–intended for policymakers–summarizing the environmental benefits of fermentation-derived ingredients and outlining recommended actions to maximize the sustainability benefits of fermentation-enabled alternative proteins.

Explore supporting LCA studies

Take a closer look at the evidence behind these findings. Explore summary results and supporting LCA data across biomass fermentation, precision fermentation, and microbial oils, including comparative models and interactive dashboards that show how fermentation-derived ingredients compare with conventional animal products.

Findings at a glance

Summary findings at a glance

Summary findings for the environmental benefits of fermentation-derived ingredients across biomass fermentation, precision fermentation, and microbial oils.

Findings at a glance for biomass, precision, and microbial oil life cycle assessments.
LCA publication overview

Public life cycle assessment compilation

Compilation of comparative LCA results and model information, including landscape of non-comparative LCAs, related to biomass, precision fermentation, and microbial oils.

Biomass impact comparisons

Compilation of biomass fermentation GHG impacts

This dashboard compares GHG emission footprints between biomass fermentation and animal-based meat systems.

Tableau dashboard that compares the ghg emissions of biomass fermentation ingredients and animal-based meat.
Precision fermentation impact comparisons

Compilation of precision fermentation dairy and egg GHG impacts

This dashboard compares GHG emission footprints between precision fermentation-derived and animal-based dairy and egg proteins.

Tableau dashboard comparing the ghg emissions of precision fermentation-derived ingredients and animal-based dairy and egg.
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Citation and DOI information

Eastham, L., and K. Trinidad. The environmental opportunity of fermentation-derived ingredients. Washington D.C.: Good Food Institute. 2026. https://doi.org/10.62468/pxet3837