通常的红肉源比如奶牛和公牛会排出大量改变气候的气体，比如甲烷。

Common sources of red meat such as cows and bulls produce an enormous quantity of climate-changing gases such as methane.

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如果肠道不能从素食食物源中吸收足够的蛋白质，那鱼或肉的食用是被推荐的。

If the tract cannot absorb enough protein from vegetarian sources, then the consumption of fish or flesh is recommended.

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在我们的饮食中由于饮用水多使用铜管，因而成为最显见的铜源，铜在红肉、贝类、坚果以及许多水果、蔬菜中普遍存在。

While drinking water is the most obvious source of copper in our diet, because of copper pipes, the substance is also quite common in red meat, nuts, shellfish, and many fruits and vegetables.

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