Rats fed diets high in saturated fat underperformed on tests of learning and memory, and humans who live on such diets seem to be at increased risk for dementia.

用高饱和脂肪食物喂养的大鼠在学习和记忆测验中表现不佳，而靠这种饮食为生的人似乎提高了患痴呆的风险。

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Rats given one cup eachof fat, protein and carbohydrate were found to make balanced dietchoices, eating a tad more protein than carbohydrates and a tad morecarbohydrates than fats.

给每只老鼠一杯脂肪、蛋白质和碳水化合物后，发现这些老鼠做出了平衡的饮食选择，吃比碳水化合物多一点的蛋白质和比脂肪多一点的碳水化合物。

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Now this abandoned place is often visited by local tramps, fat rats, parkour lovers and peaceful photographers.

现在只有当地的流浪汉，一些肥老鼠，酷跑迷和热爱和平的摄影家才会拜访这遗弃之地。

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For rats on the high-fat diet, the group that ate both types of potato chips gobbled more food, gained more weight, and developed more fatty tissue than the rats that ate only the high-calorie chips.

FORBES: Why Eating Fake Fat Can Make You Real Fat

It may seem paradoxical that the slimmer rats would want to eat less than the fat ones.

ECONOMIST: Obesity

The study (PDF) used laboratory rats that were fed either a high-fat or low-fat diet of rat vittles.

FORBES: Why Eating Fake Fat Can Make You Real Fat