. 2021 Jul 22;13(8):2507. doi: 10.3390/nu13082507

Table 1.

Names and characteristics of all applied models.

Model Number and Acronym	Objective Function (Minimum)	Foods Available	Nutritional Constraints	CO₂eq Constraint	Acceptability Constraint Max RD ^b for Food Items
1. Omni	TRD ^a from baseline diet	All food items	Meet all DRVs ^c	Not applied	+200%
2. Omni+		All food items		Max. 1571 g CO₂eq	+200%
3. Pesc		No meat or poultry products		Not applied	+200%
4. Pesc+		No meat or poultry products		Max. 1571 g CO₂eq	+200%
5. Veg		No red/processed meat, poultry meat, or seafood products	Meet all DRVs, minimum iron intake constraint 1.8 × the DRV of omnivores	Not applied	+600%
6. Veg+		No red/processed meat, poultry meat, or seafood products		Max. 1571 g CO₂eq	+600%
7. Plant		No animal products		Not applied ^d	+5000%

^a Total relative deviation. ^b Relative deviation from baseline food consumption. ^c Estimated energy requirements (EERs), recommended intake ranges for macronutrients, recommended intakes (RIs) for micronutrients [31]. ^d A CO₂eq constraint was not needed since the “Plant” model (without a CO₂eq constraint) resulted in a total CO₂eq below 1571 g CO₂eq.