Soda
Caffeine in Mountain Dew
54mg
per 12 oz
≈ 1 coffee≈ 1 Red Bull14% of FDA daily max
Is that a lot?
Mountain Dew is 14% of the FDA’s recommended daily maximum, in a single 12 oz.
Green tea
Mountain Dew
Espresso
Red Bull
Coffee
FDA daily max · 400mg
Before bed
When can I drink Mountain Dew and still sleep?
Your Mountain Dew cutoff
You drink it at
Bedtime
Mountain Dew · 54 mg · assuming an average ~5 h half-life
At bedtime
18 mg
close to optimal
Latest safe Mountain Dew: 10:27 PM
How much caffeine is in Mountain Dew?
Mountain Dew is the most caffeinated of the mainstream sodas, packing about 54 mg per 12 oz can. That extra kick rides on a hefty 46 grams of sugar, giving it a sharper jolt than colas.
| Serving | Caffeine | Sugar |
|---|---|---|
| 12 oz | 54 mg | 46 g |
Highest-caffeine mainstream soda.
Will Mountain Dew affect your sleep?
From 54 mg, the Dew sits just over the 50 mg threshold and dips below it within an hour. An afternoon can is generally clear by bedtime, but the sugar-and-caffeine combo can still leave you buzzing.
Source: Manufacturer label