Wash your hands before meals.

饭前洗手。

《新英汉大辞典》

It's a good habit to wash hands before meals.

饭前洗手是一个好习惯。

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Wash your hands before meals, or you may get ill.

饭前洗手，否则你可能会生病的。

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Drink a glass of water before meals and you will eat less, goes another.

ECONOMIST: A magic elixir is shown to promote weight loss

Gwen Eisenmann, 91, a retired poet, leads poetry discussions and also likes to set the table before meals.

WSJ: For the aging, a commune-like alternative in NY

That way patients can use it right before meals--and not have to plan their whole day around longer-acting treatments.

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