Every morning, on an empty stomach, drink 2 tablespoons of apple cider vinegar with 1 teaspoon of maple syrup mixed in 12 ounces of warm water.

每天早上，在空腹的情况下，喝两大汤匙由苹果醋和一茶匙的枫叶糖浆混合而成的12盎司温开水。

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For optimum nutritional benefit, drink as suggested on an empty stomach before sleep. Wait 20 minutes before eating.

为了达到最佳效果，建议睡前空腹服用或者餐前20分钟服用。

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Practical as well as enjoyable, aperitivo helps Londoners abide by the golden rule: never drink on an empty stomach.

BBC: Aperitivo hour comes to London

And while I have long since forgotten how to solve a differential equation, I did learn how to drink responsibly (no tequila shots on an empty stomach).

FORBES: Grownup Training