Dr Pepper has more caffeine than Starry (lemon lime): 41mg vs 0mg in the same 12 oz can. That is a 41mg gap, and since the cans match, the per-serving number is the whole story.
Starry (lemon lime) vs Dr Pepper: the numbers
| Starry (lemon lime) | Dr Pepper | |
|---|---|---|
| Caffeine per serving | 0mg per 12 oz can | 41mg per 12 oz can |
| Caffeine per fl oz | 0.0mg | 3.4mg |
| Servings to reach 400mg (FDA context) | n/a (caffeine-free) | 9.8 |
Sources: Starry (lemon lime)'s figure is verified in our Starry (lemon lime) caffeine guide against PepsiCo product facts (source); Dr Pepper's figure is verified in our Dr Pepper guide against KDP product facts / Caffeine Informer (source).
The concentration gap is the striking part: Dr Pepper packs roughly 342 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 Starry (lemon lime) when you want the lighter dose or a slower ramp, and Dr Pepper 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
- Starry (lemon lime): the full caffeine guide
- Dr Pepper: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
FAQ
Does Starry (lemon lime) or Dr Pepper have more caffeine? Dr Pepper: 41mg per 12 oz can versus 0mg per 12 oz can for Starry (lemon lime).
Which is stronger per ounce? Dr Pepper, at about 3.4mg per fluid ounce versus 0.0mg for Starry (lemon lime).
Barista Life runs on coffee people. Browse the Barista Life shop to support the site.