Subway
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Fountain drink, any size: Diet Pepsi
Regular soda sits right next to it — check the spout you press. Some Subways pour Coca-Cola instead of Pepsi; if yours does, pick Diet Coke or Coke Zero Sugar (also 0g).
0g
Total carbs
0g
Sugar
−41g
vs usual
Instead of a Pepsi (regular), per 12 fl oz (41g sugar)
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I ordered it
What's in it
Diet Pepsi, fountain (per 12 fl oz)
0g carbs
Verified against Subway's nutrition info on 2026-10-04. Drinks are made by hand, so amounts vary. Not medical advice.