1. Tonic water
    • According to 3 sources
    Tonic water is a soft drink containing quinine, which gives it a bitter taste. Quinine is a common treatment for malaria. Some people believe that it can also help with leg cramps and restless legs syndrome. Quinine comes from the bark of the cinchona tree.
    Tonic water is a sweetened soda that contains a bitter-tasting chemical compound called quinine. Quinine is actually an ingredient in some medications that treat conditions like malaria. Some people use quinine as a treatment for leg cramps, but this isn’t recommended by healthcare professionals.
    Tonic water is a carbonated soft drink in which quinine is dissolved. Originally used as a prophylactic against malaria, modern tonic water typically has a significantly lower quinine content and is often more sweetened than the original medicinal form.
     
  2. What to know about quinine in tonic water - Medical News Today

     
  3. Quinine in Tonic Water: Safety, Benefits, Uses and Side …

    Jun 7, 2020 · Quinine in tonic water is considered safe for humans to consume, but it must not to exceed 83 parts per million in order to prevent side effects. …

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