Figure 1
From: Environmental impact of omnivorous, ovo-lacto-vegetarian, and vegan diet
Environmental footprints: Daily carbon (a), water (b), and ecological (c) impacts expressed as average of 7-d food records (grams of CO2 equivalent/d, litres of H2O/d, and square meters of land/d, respectively). Values are means ± standard deviation of fifty-one independent measurements for each diet group. Different letters indicate significantly different values (P < 0.001) as calculated by one-way ANOVA with post hoc Tukey HSD test among the three diet groups. O, omnivores; VG, ovo-lacto-vegetarians; V, vegans.
