Dairy yoghurt vs Soy yoghurt
Fermented soy carries the same live cultures as dairy yoghurt, and unsweetened versions have slightly more protein with much less saturated fat.
Per per kg
Greenhouse gaseskg CO₂e / kg
Dairy yoghurt
2.2
Soy yoghurt
0.8
Land usem² / kg
Dairy yoghurt
7.3
Soy yoghurt
0.9
Proteing / 100 g
Dairy yoghurt
3.5
Soy yoghurt
4
Saturated fatg / 100 g
Dairy yoghurt
2
Soy yoghurt
0.4
Source: Poore & Nemecek (2018), Science · Our World in Data · USDA FoodData Central
Verdict
Soy yoghurt edges dairy on protein with a third of the emissions.
Questions people ask
Do plant yoghurts have live cultures?
Most do — check for named strains such as L. bulgaricus and S. thermophilus on the label.