The inefficiency of animal products

Animal agriculture takes up lots of land but provide few calories

Feed-food competition

Food waste and animal agriculture

Alternative proteins are better for the environment

36% of our calories from crops go to animals and 88% of them are wasted in growing the animal, with only 12% being turned into food. (Cassidy et al., 2013)

Globally monogastric animals (e.g., pigs and poultry) consume on average about 2 kg of human-edible feed protein to produce one kg of edible protein Mottet et al., 2017

45% of a chicken or pig's body is inedible, 60% for cows

As researchers we need to emphasise the food in vs edible mass of meat out.

In particular, animals return 21% of the zinc they eat in human-edible crops