TABLE 3.
DELTA Model results for various simulated future scenarios with the forecast global populations of 8.6 billion in 2030 and 9.7 billion in 2050
| Baseline data set (2018) | Scale-up (2030) | No meat (2030) | No sugar (2030) | Half waste (2050) | |
|---|---|---|---|---|---|
| Total biomass production leaving farms/fisheries, billions of tons/y | 10.58 | 11.85 | 12.04 | 11.85 | 10.58 |
| Total food supply after waste, billions of tons/y | 4.64 | 5.21 | 6.21 | 6.84 | 5.12 |
| Amount of total biomass above used as animal feed, billions of tons/y | 1.5 | 1.68 | 0.47 | 1.68 | 1.5 |
| Nutrient gaps >5%, % of target daily intake | |||||
| Calcium | 36 | 36 | 32 | 26 | 46 |
| Iron | — | — | 26 | — | 12 |
| Potassium | — | — | — | — | 15 |
| Riboflavin | — | — | — | — | 11 |
| Vitamin A | — | — | — | — | 12 |
| Vitamin B-12 | — | — | 35 | — | 14 |
| Vitamin E | 31 | 33 | 24 | 7 | 48 |
| Zinc | — | — | 27 | — | 13 |
| Nutrient excesses, % above safe upper limit value | |||||
| Carbohydrates | — | — | 26 | 21 | — |
| Energy | — | — | 10 | 20 | — |