When we feed animals, some of the calories go towards building lean tissue and fat that we can eat later. But the majority disappears. How can this be? Where do these calories go? We want animals to gain weight because we get more meat in return. But even if they didn’t gain weight, we’d still need to feed them to keep them alive. Those calories are burned in normal day-to-day activities: roaming around, pecking, mooing, keeping all of their organs functioning. It’s no different from humans. In a very crude and cruel sense, the calories we feed animals just to keep them alive are a ‘waste’.
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