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 |