But the ECJ says the amount is not open-ended and member states can set an upper limit.

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For supplements, the Institute of Medicine set an upper limit of 2, 000 IUs per day, but some experts think that's too low.

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These examples from space show that Britain need not set, as the upper limit of its aspiration, the goal of merely surviving the next decade.

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The government will then set a floor price and an upper limit for at least the first three years to avoid excessive price fluctuations.

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