how many grams of sugar in a mountain dew
* There are roughly 5 grams of Sugar in 1 Teaspoon. * A 20 oz bottle of Mountain Dew has 77 grams of Sugar. * There are around 15 Teaspoons of Sugar in a 20 oz Mountain Dew. * In addition Mountain Dew has about 40% more Caffeine than Coke. * A 24 oz Sweet Tea has 72 grams of Sugar. * A 16 oz Rockstar Energy Drink has 62 grams of Sugar.