据报道，由于钙的流失少，纯素食者需要食用的钙比杂食者少，而动物蛋白摄入量高会造成钙流失。
It has been reported that vegans may need to consume less calcium than omnivores due to lower levels of calcium depletion, which can be caused by a high intake of animal protein.
猪比任何其他的动物都能够提供更多的更便宜的食用蛋白质给更多的人。
Pigs provide more dietary protein, more cheaply, to more people than any other animal.
“吃植物来摄入蛋白质比吃动物更有效。”他说。
"It's much more efficient to obtain protein by eating plants rather than animals," he said.
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