The human population benefits greatly from poultry meat and eggs, which provide food containing high-quality protein, and a low level of fat with a desirable fatty acid profile.

禽肉和禽蛋对人类大有益处，为人类提供食物所含的高质量蛋白质，并且脂肪含量较低，脂肪酸含量较高。

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B - I heard plates were made of pewter and the high acid content of the tomato caused lead from the plate to poison the food.

我听说盘子是由锡铅合金制成的，番茄中的高酸物质会使盘子中的铅污染食物，引起中毒。

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Because tea leaves contain a high content of acid. This substance will cause the Protein content in the food we consume to be hardened thus difficult to digest.

不要在用餐后喝茶-因为茶叶通常含有高酸性。这种酸性物质将导致我们所摄取食物中所含的蛋白质变硬，因此会比较难消化。

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In some company this statement could clear the room fast, but sommeliers love Riesling, despite the relative skepticism of the American drinking public, and they also tend to love Chenin, for some of the same reasons it's relatively high-acid, which makes it food-friendly and lively even when it has residual sugar.

WSJ: Singing of France's Unsung Chenin Blanc | On Wine by Jay McInerney