Table 4.
Land use, water use, eutrophication and biodiversity impact by diet group, standardized to 2,000 kcal and by age and gender
| Diet group | Land use (m2 d−1) | Water use (m3 d−1) | Eutrophication (gPO4e d−1) | Biodiversity impact (×10−12 species extinction per day) |
|---|---|---|---|---|
| Vegans | 4.37 (3.59, 5.90) | 0.41 (0.26, 0.77) | 10.70 (8.61, 16.28) | 1.12 (0.73, 2.55) |
| Vegetarians | 6.01 (5.04, 9.32) | 0.53 (0.38, 0.89) | 17.27 (14.36, 22.09) | 2.08 (1.19, 5.38) |
| Fish-eaters | 6.31 (5.20, 9.68) | 0.71 (0.48, 1.63) | 21.09 (17.36, 26.52) | 2.10 (1.24, 5.51) |
| Low meat-eaters | 8.31 (5.91, 12.95) | 0.71 (0.48, 1.70) | 23.55 (19.17, 28.88) | 2.29 (1.34, 5.90) |
| Medium meat-eaters | 11.28 (7.38, 26.32) | 0.78 (0.54, 2.02) | 29.61 (23.96, 36.62) | 2.77 (1.56, 6.78) |
| High meat-eaters | 16.78 (10.31, 60.84) | 0.89 (0.63, 2.04) | 40.80 (31.26, 52.27) | 3.69 (1.92, 8.92) |
Results presented for all adults (N = 55,504). All results are presented as median (2.5th percentile, 97.5th percentile) from a Monte Carlo analysis with 1,000 iterations.