In relation to other energy-enhancing ingredients, such as taurine, the committee was unable to conclude that the level reported in energy drinks was within any upper safety limit.

在与其他能源，提高成分，如牛磺酸，委员会无法作出结论，认为该报告的水平在能量饮料是任何安全上的限制。

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The Canadian Cancer Society says the daily upper safety limit is 2,000 units, and that their recommendation of 1,000 IU takes into account vitamin D from diet and other sources.

加拿大癌症协会说每日维生素D服用量的安全上限为2000IU，他们之所以推荐每日服用1000IU维生素D是考虑到饮食和其它一些维生素D的来源。

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The upper limit of safety, the institute said, is 2,000 milligrams a day for men and women over 51.

对51岁以上的男性和女性而言，安全摄入量的上限为每人每日2000毫克。

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Dr. JOSHUA OFMAN (Vice President, Amgen): The FDA label acknowledges that a certain risks cannot be excluded, but they have clearly stated that the lowest dose should be use to avoid transfusion with an upper safety limit of 12, leaving some discretion for physicians to make those determinations based on their individual patient needs.

NPR: Doctors in Medicare Fight Over Right to Prescribe

Instead, he found it had failed to operate at maximum allowable operating pressure--odd, given that this pressure is usually the upper limit for safety and El Paso was under federal restrictions after an August 2000 pipeline explosion killed 12 campers in New Mexico.

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