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. 2025 Oct 20;12:1678148. doi: 10.3389/fnut.2025.1678148

Table 1.

DIEM parent categories with illustrative “environmental impact scores,” aggregating scores for land use; site-of-origin adjusted water use; nitrogen inputs (i.e., eutrophication); and greenhouse gas emissions.

Parent category Parent category score (scaled mean of scaled aggregate EIS per g) Mean of scaled aggregate EIS per g Range (low end) Range (high end) Standard deviation # of food items
Beef 100 85.92 73.97 100.00 13.14 3
Other red meat 89 76.64 76.64 76.64 0.00 1
Processed meat 55 46.93 29.47 98.14 35.79 6
Extracted oils—corn and olive 53 45.32 22.25 63.83 25.29 2
Butter 43 37.29 33.82 33.82 0.00 1
Tree nuts 39 33.46 8.44 45.71 16.09 6
Crustaceans 35 30.49 30.80 30.80 0.00 1
Sweets/dessert items 20 17.17 0.95 62.90 24.30 7
Cheese 18.04 15.50 5.14 29.45 9.84 10
Pork 17.97 15.44 14.08 16.72 1.87 2
Poultry 15 12.98 12.82 12.82 1.78 1
Fish 13 11.56 4.43 29.22 8.6 15
Other dairy (except butter, cheese) 10 8.17 2.27 25.16 7.56 12
Alcohol, liquor 8 6.93 6.97 6.97 0.00 1
Extracted oils—other 5.87 5.04 1.49 9.06 2.41 8
Refined grains and grain products 5.53 4.75 2.33 7.71 2.23 6
Alcohol, wine 5.17 4.44 3.65 3.84 0.13 2
Eggs 4.93 4.24 4.18 4.18 0.00 1
Mollusks 4.62 3.97 4.06 4.06 0.00 2
Whole grains 4.02 3.46 1.46 6.27 1.84 6
Fruits 3.56 3.06 0.74 5.97 1.66 20
Legumes 3.01 2.59 0.78 6.01 1.85 8
Beverages 2.74 2.36 0.00 5.44 2.23 14
Vegetables, starchy 2.57 2.21 0.42 5.90 2.14 5
Vegetables, non-starchy 2.39 2.05 0.52 5.53 1.87 21
Meat alternative—tofu 2.06 1.77 1.72 1.72 0.00 1
Peanuts 1.83 1.57 1.53 1.53 0.00 1
Dairy alternatives—all 1.75 1.50 0.26 2.97 1.87 3
Alcohol, beer 1 0.75 0.61 0.90 0.21 2