The recommended dosage of caffeine per day is 400mg, and Red Bull's 80mg is well within that. But that doesn't mean they're necessarily good for us.

正常人每天咖啡因的建议使用量是400毫克。而一罐红牛只含80毫克，在正常范围之内。不过这并不意味着红牛对我们身体绝对有益。

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Prescriptions for non-steroidal anti-inflammatory drugs in Denmark are for relatively large doses, equivalent to 400mg or 600mg of ibuprofen.

BBC: Pregnant women warned off painkillers