Caffeine in Diet Mountain Dew

How Much Caffeine in Diet Mountain Dew?

Mountain Dew products are partly known for their caffeine content. A 12 ounce Diet Mountain Dew has 54 mg of caffeine. In comparison, a 12 ounce Diet Pepsi has 34 mg of caffeine. Diet Mountain Dew has identical caffeine content to regular Mountain Dew. Additionally, it has more caffeine than many other soft drinks. Check out our Big List of Caffeine in Drinks to see how the caffeine in Diet Mountain Dew compares to the caffeine in other beverages.

Caffeine in Diet Mountain Dew

ProductServing SizeCaffeine (mg)Caffeine(mg)/fl oz
Diet Mountain Dew7.5 fl oz34 mg4.53 mg
Diet Mountain Dew12 fl oz54 mg4.5 mg
Diet Mountain Dew16 fl oz72 mg4.5 mg
Diet Mountain Dew16.9 fl oz77 mg4.56 mg
Diet Mountain Dew20 fl oz91 mg4.55 mg
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Diet MTN Dew: Carbonated water, concentrated orange juice, citric acid, natural flavors, citrus pectin, potassium benzoate, aspartame, potassium citrate, caffeine, sodium citrate, acesulfame potassium, sucralose, gum arabic, sodium benzoate, calcium disodium edta, brominated vegetable oil, yellow 5.


ProductServing SizeCaloriesTotal Fat (g)Sodium (mg)Carbs (g)Sugars (g)Protein (g)
Diet Mountain Dew7.5 fl oz0030000
Diet Mountain Dew12 fl oz0050000
Diet Mountain Dew16 fl oz5070<100
Diet Mountain Dew16.9 fl oz5070<1<10
Diet Mountain Dew20 fl oz10085<1<10

**Sizes above 20 fl oz, use 12 fl oz serving size above**

Dat Source:
Image Credit: Mike Mozart