Introduction:After Luckin Coffee’s Yuzu C Series made a comeback, it sparked heated discussions on social media, with many users hailing it as a “fat-burning miracle.” However, actual testing revealed that while its calorie count is low, it may cause a rapid spike in blood sugar — making it less than ideal for those looking to lose fat or manage their blood sugar levels. This article uses real test data and formula analysis to reveal the true nature of this drink and help you make a smarter choice.

The Yuzu C Series quickly became a hot topic after its return, with many consumers sharing their drinking experiences on social platforms. Some even claimed they “lost two pounds after just one cup,” turning the drink into a so-called weight-loss holy grail. But a deeper look at its calorie content and glycemic response shows the reality isn’t so straightforward.

According to testing, a single serving of the Yuzu C Series contains about 105 to 150 calories. If you opt out of adding extra sugar, the calorie count can drop to around 105. While this seems like a low-calorie option for those watching their weight, it doesn’t necessarily mean it aids in fat loss.

Notably, blood sugar levels rise quite rapidly after consuming the Yuzu C Series. Take the Yuzu C Iced Tea, for example: half an hour after drinking, blood sugar levels surged from 5.2 to 10.3, a jump of 5.1. Even the Yuzu C Americano saw a rise of 2.7. Such rapid fluctuations in blood sugar stimulate a large release of insulin, which not only lowers blood sugar but also promotes fat synthesis and can even increase hunger — potentially making you want to eat more.

For those trying to lose fat or manage their blood sugar, such a response may not be conducive to achieving their weight-loss goals. Although the Yuzu C Series is marketed as 0% fat, its formula includes high-fructose corn syrup and white sugar — meaning its so-called low fat doesn’t equate to low sugar.

Yuzu itself is indeed a low-calorie fruit, often considered one of the “fat-burning fruits” for weight loss. But Luckin’s Yuzu C Series doesn’t rely solely on the natural properties of yuzu. According to formula information revealed by Luckin employees, the yuzu concentrate contains high-fructose corn syrup and white sugar — ingredients that significantly impact the sugar content of the drink. Drinking it regularly could actually counteract your fat-loss efforts.

Many consumers have shared experiences such as “going to the bathroom soon after drinking Yuzu C” or “losing a pound the next day after one cup.” These effects are more likely due to gastrointestinal reactions caused by excessive intake of cold drinks, rather than any real fat-loss benefits. This phenomenon reminds us not to judge a drink’s health benefits based solely on short-term experiences.

In summary, although the Luckin Yuzu C Series isn’t high in calories, it causes a rapid rise in blood sugar and contains a non-negligible amount of sugar. For those aiming to lose weight or control their blood sugar, it may require more cautious consideration. If you really want to use a beverage to support your fat-loss journey, it’s recommended to prioritize sugar-free, low-glycemic options and pay attention to overall dietary balance.

The above content is compiled by CoffeeHunters, a coffee news website.