Sonic
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Medium Diet Mountain Dew with zero-sugar mango
Say 'zero-sugar mango'. The regular Mango Add-In is 13g sugar in a medium. Diet Mountain Dew isn't at every Sonic.
~2g
Total carbs
~0g
Sugar
−55g
vs usual
Instead of a Medium Mountain Dew (55g sugar) · carbs added up from each ingredient
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What's in it
Diet Mountain Dew, Medium (listed as <1g carbs, counted as 1g)
1g carbs
Mango Zero Sugar Add-In, Medium
1g carbs
Verified against Sonic's nutrition info on 2026-10-11. Drinks are made by hand, so amounts vary. Not medical advice.