Understanding Lemon Juice Concentrate
Lemon juice concentrate is made by extracting the juice from fresh lemons and then removing a significant portion of the water content through evaporation. This process creates a more shelf-stable product with a smaller volume, which is cheaper and easier to transport. When consumers buy a bottle of "lemon juice from concentrate," water has typically been added back in, along with other ingredients like preservatives and flavors.
It is critical to distinguish between different types of concentrated products. A product labeled as “100% lemon juice from concentrate” is different from a “lemonade concentrate” or other lemon-flavored beverage. In the former, the only ingredients should be water and lemon juice concentrate. In the latter, the list of ingredients will likely include added sweeteners and flavors to improve palatability.
Decoding the Nutrition Facts Label
Navigating the world of nutritional labeling is essential for understanding what is actually in your food. The key is to look at both the ingredients list and the nutrition facts panel.
The Ingredient List: Your First Clue
Under FDA guidelines, ingredients are listed in descending order by weight. To identify added sugar in lemon juice concentrate, check the ingredient list for common names of sweeteners, such as:
- Cane sugar
 - Corn syrup (including high-fructose corn syrup)
 - Dextrose
 - Fructose
 - Maltose
 - Sucrose
 - Fruit juice concentrates used as sweeteners in non-juice products
 
If the ingredient list for your lemon juice concentrate only contains "lemon juice concentrate" and "water," and possibly preservatives like sodium benzoate or sodium metabisulfite, it should be free of added sugar. However, if you see any of the sweeteners listed above, the product contains added sugar.
The Nutrition Facts Panel: A Quantitative Measure
The Nutrition Facts panel provides a more quantitative look at the sugar content. Look for the line that says "Total Sugars" and the sub-line that says "Includes Added Sugars." This was mandated by the FDA to help consumers make more informed decisions.
- Total Sugars: This number includes both naturally occurring sugars (from the fruit) and any added sugars. In pure 100% lemon juice from concentrate, the sugar content will be minimal and consist only of the fruit's natural sugars, which have become concentrated. One tablespoon of bottled 100% lemon juice concentrate typically has less than 1 gram of total sugar.
 - Includes Added Sugars: This is the most crucial part for our question. If the number on this line is greater than 0g, then the product contains added sugar. Some manufacturers might label a product as "no sugar added" even if it's made from concentrate, which can be misleading since the concentration process can increase the density of natural sugars. However, a product labeled "100% juice" is generally not permitted to add sugar. The FDA treats juice concentrates from 100% juice differently depending on how they are used.
 
Comparison of Lemon Juice Options
To help you decide, here is a comparison of different lemon juice types and their sugar content:
| Feature | Freshly Squeezed Lemon Juice | 100% Lemon Juice from Concentrate | Sweetened Lemonade Concentrate | 
|---|---|---|---|
| Added Sugar | No | No (if truly 100% juice) | Yes | 
| Processing | Minimal (squeezed) | Juice extracted, water removed, then reconstituted | Juice mixed with added sugars, water, and flavors | 
| Additives | None | May contain preservatives (e.g., sodium benzoate) | May contain preservatives, natural/artificial flavors | 
| Natural Sugars | Small amount (approx. 0.8g per oz) | Small amount, concentrated | Small amount (from concentrate), overwhelmed by added sugar | 
| Taste Profile | Bright, fresh, and zesty | More intense acidity, less fresh flavor | Sweet and tangy, less natural lemon flavor | 
Making a Healthy Choice for Your Diet
For those on a strict nutrition diet or aiming to reduce sugar intake, the purest option is almost always the best. Here are some recommendations:
- Opt for Fresh Lemons: Squeezing your own juice is the most transparent and healthiest choice. It guarantees no added sugar or preservatives. For convenience, you can freeze fresh lemon juice in ice cube trays.
 - Read Labels Carefully: If buying bottled concentrate, find a product explicitly labeled as "100% Lemon Juice from Concentrate" and scrutinize the ingredient list for any added sweeteners.
 - Avoid Sugar-Laden Beverages: Recognize the difference between a pure concentrate and a sweetened beverage. Lemonade concentrates, for instance, are essentially sugared drinks and are not a substitute for pure lemon juice.
 - Use as a Flavoring, Not a Main Ingredient: Given its high acidity and concentrated flavor, lemon juice concentrate is best used sparingly as a flavoring agent in recipes, not as a primary beverage base. Diluting it properly is key to mitigating potential harm from acidity.
 
Conclusion
In summary, the answer to does lemon juice concentrate have added sugar? is not a simple yes or no. The presence of added sugar is entirely dependent on the manufacturer and product. While 100% lemon juice from concentrate does not contain added sugar, products labeled as lemonades or juice cocktails that contain concentrate are almost always sweetened. By carefully checking the ingredient list for specific sugar names and the Nutrition Facts panel for the "Includes Added Sugars" line, consumers can easily determine the product's true sugar content and make the best choice for their health goals.
For more information on understanding food labels and added sugars, the U.S. Food and Drug Administration (FDA) provides a helpful guide: Added Sugars on the Nutrition Facts Label - FDA.