04/10/2013 07:12 BST | Updated 23/01/2014 18:58 GMT

Can Tea Upset Your Stomach? (VIDEO)

Ever get an upset stomach after drinking tea or coffee? You're not alone.

Experts explain how the tannins in tea and coffee can cause excess acid production in the stomach, which makes people feel uneasy - particularly if you drink it before you've eaten anything.

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