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What to Look for When Buying Low- or Zero-Calorie Drinks

Learn how to compare low- and zero-calorie drinks by serving size, calories, sugars, sweetener ingredients and the rest of the Nutrition Facts label.
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Compare calories for the amount you will actually drink, then check total sugars, added sugars and the ingredient list. A “zero-calorie” or “sugar-free” claim alone does not tell you how many servings are in the bottle, which sweetener it contains or whether it provides useful nutrients.

Start with the serving size and calories

On the Nutrition Facts label, check both the serving size and the servings per container. A bottle may contain more than one labeled serving, so the calories listed per serving may not represent the whole bottle. The CDC notes that serving size reflects how much people are likely to consume, not necessarily the portion they should consume. For a fair comparison, use the same basis for both drinks—for example, the whole bottle or an equal volume—and adjust the calories accordingly. CDC: Understanding food labels

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Compare total sugars and added sugars

Total sugars include sugars naturally present in a drink as well as sugars added during processing. Added sugars include sugars from sweeteners, syrups, honey and concentrated fruit or vegetable juices. Naturally occurring sugars in fruit, vegetables and milk are not counted as added sugars. The FDA does not set a Daily Value for total sugars, but its Daily Value for added sugars is 50 grams per day, based on a 2,000-calorie diet. On the label, 5% Daily Value or less is considered low in added sugars; 20% or more is considered high. These percentages are a quick way to compare products, not a personal daily target. FDA: Added sugars on the Nutrition Facts label

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Read the claim and the ingredient list together

“Sugar-free” does not necessarily mean zero calories

FDA guidance generally defines “sugar-free” as less than 0.5 grams of sugars per reference amount and labeled serving. The phrase is not a complete calorie claim: if a product is not low- or reduced-calorie, accompanying language may be required. Check the Nutrition Facts panel rather than inferring calories from the front label. “Low calorie,” “zero calorie,” “sugar-free” and “no added sugar” are not interchangeable descriptions. FDA: Guidance for Industry—Food Labeling Guide

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Find out which sweetener is used

When comparing a sweetened drink with a diet or sugar-free version, look for the sweetener by name in the ingredients. FDA discusses high-intensity sweeteners including aspartame, sucralose and stevia-derived substances; they can also appear in powdered drink mixes. Ingredient lists help identify what a product uses, but do not establish that one option tastes better or suits every person. FDA: High-intensity sweeteners

Check other label details that matter to you

Calories are only one part of the comparison. Use the Nutrition Facts label to check nutrients such as sodium, and do not assume a zero-calorie drink supplies meaningful nutrients. If you are considering a zero-calorie drink mix packet for portable flavor, check the packet’s own Nutrition Facts and ingredient list; a sweetened mix is not the same thing as plain water. CDC: Understanding food labels

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Understand what sweetener guidance does—and does not—say

FDA says sweeteners used in foods must meet applicable safety requirements and says scientific evidence continues to support its determination that aspartame is safe for the general population when used under approved conditions. That regulatory safety statement is different from asking whether a sweetener is a useful long-term weight-control strategy. FDA: Aspartame and other sweeteners in food

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CDC says replacing added sugars with low- or no-calorie sweeteners may reduce calorie intake in the short term, while questions remain about long-term effectiveness for weight management. WHO’s 2023 conditional guideline recommends against using non-sugar sweeteners to control body weight or reduce the risk of noncommunicable diseases. It applies to people generally except those with pre-existing diabetes, is not a toxicological assessment of individual sweeteners, and is not a replacement for safe-intake guidance. WHO excludes sugar alcohols (polyols) from this recommendation because they are caloric sugar derivatives rather than non-sugar sweeteners as defined in the guideline. The recommendation is not proof that a particular diet drink is harmful. WHO: Use of non-sugar sweeteners · CDC: Rethink your drink

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Use a simple comparison checklist

  1. Match the amount. Compare one whole bottle with another, or compare equal volumes; account for servings per container.
  2. Compare calories. Use the calories for the amount you would actually drink, not just the listed serving if it is smaller.
  3. Check sugars. Look at both total sugars and added sugars in grams and % Daily Value.
  4. Scan the ingredients. Identify the sweetener, if any, by name.
  5. Check other nutrients. Review sodium and any other nutrients relevant to your preferences.
  6. Choose by your own taste and tolerance. Labels can show what is in a drink; they cannot predict your personal preference.

Consider water when you want flavor without a sweetened packaged drink

CDC lists tap water, unsweetened bottled water and sparkling water as options; water is calorie-free. For flavor, it suggests adding a splash of 100% juice to sparkling water. CDC: Water and healthier drinks

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Keep older consumption figures in context

CDC reports that 49% of U.S. adults drank a sugar-sweetened beverage on a given day during 2011–2014, and that adults consumed an average of 145 calories per day from these beverages during that same survey period. These are historical figures, not measurements of consumption in 2026. The CDC examples of sugar-sweetened beverages include regular soda, fruit drinks, sports and energy drinks, sweetened waters, and sweetened coffee or tea. CDC: Sugar-sweetened beverage intake

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These label rules and claims refer to U.S. FDA guidance. If you are shopping elsewhere, use the nutrition labeling rules and claim definitions that apply in your country.

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Quick Recap

SaleBestseller No. 2
Snapple Zero Sugar Peach Tea, 16 fl oz recycled plastic bottle (Pack of 12)
Snapple Zero Sugar Peach Tea, 16 fl oz recycled plastic bottle (Pack of 12)
QUALITY: Our teas, fruit drinks, and lemonades are always made from quality ingredients.
$9.98
Bestseller No. 3
Lipton Zero Sugar Iced Tea, Peach, 16.9 fl oz Bottles, (12 Pack)
Lipton Zero Sugar Iced Tea, Peach, 16.9 fl oz Bottles, (12 Pack)
Includes 12 (16.9 fl oz) bottles of Lipton Zero Sugar Peach Iced Tea​; Say hello to a sip of sunshine with Lipton Iced Tea Zero Sugar Peach!​
$7.37
Bestseller No. 4
Coca-Cola Zero Sugar Soda Soft Drink Fridge Pack Cans, 12 fl oz, 12 Pack | Carbonated cola soda pop with zero calories
Coca-Cola Zero Sugar Soda Soft Drink Fridge Pack Cans, 12 fl oz, 12 Pack | Carbonated cola soda pop with zero calories
This zero-sugar soda delivers iconic cola flavor in every sip; Delicious and bold, Coca-Cola Zero Sugar is the refreshing drink that brightens your day
$7.68
Best Value
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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