Seltzer Water Drinks That Taste Like Soda
Fizzy and limes in it. 3 min to make.
How much sugar and caffeine is in a Mountain Dew?
A 12 fl oz can of Mountain Dew has 46 g of sugar (about 12 teaspoons) and 54 mg of caffeine. That is over the American Heart Association's daily added-sugar limits for women (25 g) and men (36 g). A 20 fl oz bottle: 77 g sugar, 91 mg caffeine. Source: pepsicoproductfacts.com, checked 13 November 2026.
Mountain Dew by size
What that looks like in teaspoons
One cube is one teaspoon, or 4 g of sugar.
12 fl oz can46 g = 12 tsp
20 fl oz bottle77 g = 19 tsp
Check your own day.
Set how many Mountain Dew you drink and see the week, the month and the year. Change the drink to compare.
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mg caffeine a day
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Swap it.
Drinks you can make at home that keep what you reach for Mountain Dew for.
Questions about Mountain Dew.
How much sugar is in a Mountain Dew?
A 12 fl oz can has 46 g of sugar. At 4 g per teaspoon that is about 12 teaspoons. A 20 fl oz bottle has 77 g.
How much caffeine is in a Mountain Dew?
A 12 fl oz can has 54 mg of caffeine. A 20 fl oz bottle has 91 mg. For comparison, the FDA cites 400 mg a day as an amount not generally associated with negative effects for most healthy adults.
How much sugar is that in a year at one 12 fl oz can a day?
16.8 kg of sugar, about 4,198 teaspoons, across 365 cans. The Swap Lab checker above works it out for your own number of drinks per day or week.
How does Mountain Dew compare with the daily sugar limits?
That is over the American Heart Association's daily added-sugar limits for women (25 g) and men (36 g).
What can I drink instead of Mountain Dew?
Try Seltzer Water Drinks That Taste Like Soda, Shirley Temple Mocktail or Mocktail Recipes. Each is a short recipe on this site that keeps what you like about Mountain Dew: cold, and with a lift if you want one.
Read next
Check another drink
Where the numbers come from.
Every figure is from the maker's own US nutrition page or label, or from the USDA's FoodData Central database, checked 13 November 2026. Recipes and formulas change, so the label on your can has the final word.
- Teaspoons: 4 g of sugar counts as 1 teaspoon (MedlinePlus).
- Sugar limits: the American Heart Association suggests no more than 25 g of added sugar a day for women and 36 g for men (heart.org).
- Caffeine: the FDA cites 400 mg a day as an amount not generally associated with negative effects for most healthy adults (fda.gov).
- Mountain Dew, 12 fl oz can: sugar from pepsicoproductfacts.com, caffeine from pepsicoproductfacts.com.
- Mountain Dew, 20 fl oz bottle: sugar from pepsicoproductfacts.com, caffeine from pepsicoproductfacts.com.
FizzFree is a habit tracker and not medical advice. If you have a health condition or take medication, talk to your doctor before changing what you drink. Mountain Dew is a trademark of its owner; FizzFree is not connected to it.