Does Diet Dr Pepper Have Caffeine? – Answered

Yes, Diet Dr Pepper has caffeine. A 12 fl oz can has 41 milligrams of caffeine.

Here is the caffeine content of Diet Dr Pepper for some of its popular serving sizes:

Diet Dr Pepper Caffeine Content

Serving Size	Caffeine (mg)	Caffeine(mg)/ fl oz
7.5 fl oz	26	3.47
8 fl oz	28	3.5
10 fl oz	34	3.4
12 fl oz	41	3.42
14 fl oz	48	3.43
16 fl oz	55	3.44
16.9 fl oz	58	3.43
20 fl oz	68	3.4

Diet Dr Pepper Comparisons

Here are a few comparisons between the caffeine in Diet Dr Pepper vs other beverage:

Beverage	Serving Size	Caffeine (mg)
Diet Dr Pepper	12 fl oz	41
Dr Pepper (Regular)	12 fl oz	41
Coca-Cola Classic	12 fl oz	34
Diet Coke	12 fl oz	46
Diet Mtn Dew	12 fl oz	54
Coffee	12 fl oz	136*

Diet Dr Pepper Ingredients

 Carbonated water, caramel color, aspartame, phosphoric acid, natural and artificial flavors, sodium benzoate (preservative), caffeine

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