Mountain Dew Baja Blast has more caffeine than Sunkist Zero Sugar: 59mg vs 19mg in the same 12 oz can. That is a 40mg gap, and since the cans match, the per-serving number is the whole story.
Mountain Dew Baja Blast vs Sunkist Zero Sugar: the numbers
| Mountain Dew Baja Blast | Sunkist Zero Sugar | |
|---|---|---|
| Caffeine per serving | 59mg per 12 oz can | 19mg per 12 oz can |
| Caffeine per fl oz | 4.9mg | 1.6mg |
| Servings to reach 400mg (FDA context) | 6.8 | 21.1 |
Sources: Mountain Dew Baja Blast's figure is verified in our Mountain Dew Baja Blast caffeine guide against PepsiCo product facts (source); Sunkist Zero Sugar's figure is verified in our Sunkist Zero Sugar guide against Caffeine Informer (source).
The concentration gap is the striking part: Mountain Dew Baja Blast packs roughly 3 times the caffeine per ounce. Sipping speed matters at that density; a 12 oz can finished in minutes hits differently than the same milligrams spread over a slow cup.
Which one should you pick?
Pick Sunkist Zero Sugar when you want the lighter dose or a slower ramp, and Mountain Dew Baja Blast when you actually need the bigger hit and know your tolerance. If you are stacking either with other caffeinated drinks through the day, run the math against the 400mg reference rather than guessing.
For context, the FDA cites 400mg of caffeine a day as an amount generally not associated with negative effects in healthy adults. Tolerance and health vary, so treat these numbers as information, not advice.
Related reading
- Mountain Dew Baja Blast: the full caffeine guide
- Sunkist Zero Sugar: the full caffeine guide
- The verified caffeine database
FAQ
Does Mountain Dew Baja Blast or Sunkist Zero Sugar have more caffeine? Mountain Dew Baja Blast: 59mg per 12 oz can versus 19mg per 12 oz can for Sunkist Zero Sugar.
Which is stronger per ounce? Mountain Dew Baja Blast, at about 4.9mg per fluid ounce versus 1.6mg for Sunkist Zero Sugar.
Comparing caffeine? The caffeine comparison tool puts hundreds of drinks side by side, and the caffeine curfew calculator can check your cutoff time for tonight.