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Tofu is the winner. Scientist creates new holistic scoring system to measure the impact of food (phys.org)
submitted 18 hours ago* by to c/solarpunk@slrpnk.net
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In a paper published in Frontiers in Sustainable Food Systems, Dr. Chris Macdonald explored the best sources of protein currently available.

To answer the question, Macdonald had to build a new holistic scoring system that combines measures of environmental impact, health, affordability and availability into a single framework.

Applying the scoring system to 20 commonly consumed protein-rich foods, the analysis found a striking pattern: every product in the highest-scoring quintile was plant-based, while every product in the lowest-scoring quintile was animal-based. Tofu ranked first overall, while cheddar cheese ranked last.

The paper argues that many existing food rating systems focus on only one aspect of a product. While useful, these single-dimension labels can obscure important trade-offs and make it difficult to compare foods comprehensively.

TOFU DOMINATION

Link to open access article https://www.frontiersin.org/journals/sustainable-food-systems/articles/10.3389/fsufs.2026.1677796/full

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[–] -3 points 10 hours ago (7 children)

90%+ of soya grown is used for animal feed.

this just isn't true. some 80%+ is pressed for oil

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  • [–] 4 points 5 hours ago (2 children)

    this just isn’t true. some 80%+ is pressed for oil

    Lol you show up in every thread talking about soybeans being used for animal feed. If beans weren't used for animal feed then the entire northern hemisphere would be growing rapeseed because it's a more efficient oil producer per acre.

    A majority of soybean production exists only because it can be turned into animal feed after it's processed.

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  • [–] -2 points 5 hours ago

    i think it's true that being able to feed the waste product to livestock helps make teh decision to plant it easier. but it's still the case that humans use about 93% of the crop before giving anything to livestock, and it's a conservation of resources to give the waste from the oil production to livestock.

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  • [–] 6 points 8 hours ago (1 child)

    It isn't one or the other, it's both: soya oil and meal (what's left after pressing the oil out) are so-called "co-products" - you get about 20% oil, and 80% meal. The meal goes almost exclusively into animal feed, the oil then goes into various other products, including animal feed and food industry, where it is used in mostly non-vegan products (because vegan products only constitute a small proportion of industrially produced food products).

    Your 80% figure pressed for oil includes soya meal used for animal feed.

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