N1 Fitness - Tonic 'water' unfortunately isn't anything like water at all, it's more like pop, however it's easy to mistake it for a zero or low calorie alternative like soda water.
Sparkling Water vs. Seltzer vs. Club Soda vs. Tonic Water: What's the – Soda Sense
Svami Mixed Cased Tonic Water
Ritual G&T - Zero-Proof Cocktails | Ritual Zero Proof
Great Value Diet Tonic Water, 33.8 Fl Oz Bottle - Walmart.com
Alternative tonic waters to enhance your next gin & tonic