Calories in Longan Juice: Nutritional facts for Longan Juice Types

Longan juice contains 40 calories per one hundred grams.

Longan juice provides 400 calories in one kilogram (1,000 g).

Longan juice retail products vary in caloric density, with a 150 ml bottle of IF Local Sensation providing 54 calories. A 140 g serving of traditional Thai Longan Drink with added sugar contains 119 calories.

Longan juice offers physiological benefits, such as supporting nervous system function and delivering beneficial Vitamin C. This light amber beverage is a recognized pantry staple in Thai and Chinese food cultures. A list of the health benefits of longan juice are shown below.

• Aids Nervous System Health: The juice contains compounds traditionally used to reduce stress and promote restful sleep.
• Provides Cellular Protection: Phenolic acids defend tissues from oxidative damage.
• Supports Cardiovascular Health: The natural potassium aids in balancing bodily sodium, which manages steady blood pressure.
• Delivers Rapid Energy: Simple carbohydrates from the natural fructose transfer glucose quickly into the bloodstream.
• Contributes to Hydration: The high water volume assists individuals in meeting their daily fluid requirements.
• Stimulates Immune Activity: The dense Vitamin C profile supports the generation of white blood cells.

Longan juice can trigger certain physiological drawbacks, specifically rapid blood sugar elevation and potential weight gain due to its carbohydrate concentration. A list of the downsides of longan juice are shown below.

• Elevates Blood Sugar: The lack of dietary fiber causes rapid fructose absorption, triggering sharp insulin releases.
• Contributes to Weight Gain: Drinking liquid calories bypasses the fullness signals normally activated by eating whole foods, leading to caloric surpluses over time.
• Promotes Dental Decay: Natural fruit acids and sugars weaken tooth enamel and provide food for oral bacteria.
• Does Not Provide Satiety: The absence of protein, fat, and dense fiber means the drink will not keep an individual full for long periods.

Yes, longan juices are a beneficial beverage when managed with strict portion control, providing hydration and plant vitamins in a 100 ml serving. Healthy individuals should limit intake to 120 ml (0.5 cup) daily to secure the immune supporting properties of the fruit without taking in excess simple sugars. A study by Yang et al. (2011), "Antioxidant properties of longan (Dimocarpus longan Lour.) fruit," notes that the bioactive compounds in longan provide measurable cellular support. It is a sweet, functional drink that demands portion control.

Longan juice energy values fluctuate based on the specific water dilution, fruit blending, and added sweeteners. Standard 100% Longan Juice contains 40 calories per 100 ml. If the product is Nam Lum Yai, the energy rises to 85 calories per 100 ml because producers simmer dried longan and blend in cane sugar to create a highly sweet syrup base. Longan Date Tea yields 55 calories per 100 ml since it relies on red dates that have a distinct carbohydrate profile. When carbonated water is injected to produce Sparkling Longan Juice, the value decreases to 32 calories per 100 ml because the gas takes up physical space in the liquid.

There are no main dishes with longan juice on the permanent or seasonal menus of restaurant chains. Because longan juice is a heavily sweetened fruit beverage, it is strictly excluded from commercial savory entrees and protein preparations.

Longan juice finds its earliest agricultural origins in ancient China and Southeast Asia, where the raw tropical fruit was first cultivated. Early agrarian societies consumed the fruit whole or dried it in the sun for preservation. Cooks discovered that simmering the dried, smoky longan fruits in boiling water produced a sweet, fragrant liquid that could be chilled and served as a beverage. As mechanical processing and pasteurization improved during the 20th century, the beverage evolved into a shelf stable commercial nectar valued for its rich amber color and unique floral aroma.