Around 300 participants that suffered from a persistent cough took part in a clinical trial at 13 National Health Service hospitals in the UK. They were given theobromine, the naturally occurring chemical found in chocolate, twice a day for 14 days. 60% of the participants reported some sort of relief.

Research has it that a daily dose of dark chocolate may come with sufficient amounts of active compound to treat a chronic cough, emphasis on the word ‘treat’. It did not cure the cough, considering symptoms did return once treatment was ended.

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