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How much sugar is in my smoothie?

Pick a glass and see its sugar as teaspoons, the added part on its own, beside a 12 oz can of cola. Then try the game.

20 teaspoons83 g of sugar

50 of these 83 g were added, about 12 teaspoons. The US line for a whole meal is 10 g of added sugar. That's more than two cans of cola.

10 g, a meal's line
20 tsp in the Caribbean Way, 20 oz, 12 added
9 tsp in a 12 oz cola

From Smoothie King's menu, November 2026. A teaspoon of sugar is 4.2 g (USDA). The added line marks 10 g.

Which has more sugar?

Round 1 of 100 right

Grams from USDA records and the chains' own pages.

What your teaspoons mean

Look at the added stack first. The sugar in whole fruit and plain milk comes packed with fiber, protein, potassium and water, and the guidelines don't count it as added. The added part is the honey, syrup, turbinado and juice concentrate, and 10 g, about two and a half teaspoons, is the most the US guidelines allow in a whole meal. If your added stack passes that line, the fix is to leave the sweetener out and let a frozen banana or mango do the job. If it's all fruit and milk, keep it to two portions of fruit and you're fine.

How it counts

Teaspoons = grams of sugar รท 4.2, the weight of a level teaspoon of sugar in USDA's records. A 12 oz can of cola has 37 g, about 9 teaspoons. A USDA sugar cube is 2.3 g, so two cubes are about a teaspoon.

Which sugar counts

The 2025 to 2030 US guidelines count honey, syrups, juice concentrate and table sugar as added sugar and set 10 g as the most for one meal. "Some foods and drinks, such as fruits and plain milk, have naturally occurring sugars. The sugars in these foods are not considered added sugars." So a 20 oz Caribbean Way's 83 g is about 20 teaspoons, 12 of them added, more than two cans of cola, and the strawberry banana yogurt glass's 40 g all come from the fruit and milk.

5 sources
  1. US Department of Agriculture and US Department of Health and Human Services. Dietary Guidelines for Americans, 2025 to 2030. January 2026cdn.realfood.gov
  2. USDA FoodData Central, SR Legacy: granulated sugar (169655), 4.2 g a teaspoonnutritionvalue.org
  3. USDA FoodData Central, SR Legacy: regular cola (174852), 36.8 g in 12 fl oznutritionvalue.org
  4. Smoothie King product pages, opened November 14, 2026smoothieking.com
  5. Jamba Nutrition Spreadsheet, October 2026assets.ctfassets.net

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