The researchers actually tested each rat with two different doses: 0.3 milligrams for every kilogram of weight (the rats averaged about 250 milligrams), and 1 mg per kg.

研究人员以两种剂量的药物对每只小鼠进行测试：每公斤体重0.3毫克以及1毫克。

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You continue steady weight loss of 1 to 2 pounds (0.5 to 1 kilogram) a week until you reach your goal weight.

你将继续稳定地每周减重1-2磅（0.5-1kg），直到你达到目标体重。

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Next every kilogram and every gram of weight that is sent to space has already been precisely calculated and treasured.

其次，送入太空的每一公斤甚至每一克重量，都是精打细算、十分珍贵的。

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The American College of Sports Medicine recommends that endurance and strength training athletes consume higher levels of daily protein than the standard recommended daily allowance (i.e. 1.2-1.7 grams of protein for each kilogram of body weight, versus 0.8 grams per kilogram per day).

CNN: Could low iron, protein contribute to soreness after exercise?

With the weightlifting trials approaching, her main goal this week has been to shed nearly eight pounds from her 136-pound, 5-foot-3 frame to make her weight class. (At the trials, she will compete in the 58-kilogram class, which is about 127.6 pounds.) As a skeleton racer, she can afford to be a bit heavier.

WSJ: Cross Training: A Racer on Ice Dreams of Summer Games, Too