Avoid tonic water if you have these medical conditions

Tonic water contains quinine, which can cause undesirable side effects in pregnant women and people with certain health problems. — dpa

Tonic water, with or without the gin, tastes a little bitter, and the reason for this is its naturally-occurring quinine.

Originally used as a malaria cure beginning centuries ago, it is the very reason this drink is still called a “tonic”.