Our expert says:
Yes, you can drink 4 cups of rooibos tea instead of 4 cups of water a day and add lemon juice and 1 teaspoon of brown sugar. If you are drinking other liquids during the day then you don't need to have 6 cups or 1.5 L of water, but only 4. Adults need 2,5 L of liquid a day, not more, esp at the moment when it is cold.
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