Longan Nutrition Facts

- Mar 03, 2018 -

Longans are closely related to lychees and rambutans. Natives to South-East Asia, longans are widely cultivated in China, and some of its neighboring countries. As compared to lychees, longans are less juicy, and are also smaller. The rind is light brown, and the whitish flesh is translucent. These fruits are consumed raw, or in cooked or dried form. Even canned ones are available in the market. In its native regions, longans are used in desserts, soups, and snacks. Above all, it is also used in the traditional Chinese medicine.


As mentioned above, these fruits are related to lychees, and are usually referred to as lychee's little brother. Both of these fruits belong to the same family Sapindaceae, but the genera are different. While lychees belong to the genus Litchi, longans belong to the genus Dinocarpus. Longans are also known as Euphoria longana. Locally, longans are known as dragon eye fruits, as the single black seed inside the transparent flesh resembles an eye ball. A ripe longan fruit is almost round in shape, a little larger than an olive. The leathery skin of this fruit is thin and brittle. There are many different types of longans. Some varieties, like the brown-seeded and black-seeded versions, are much sweeter than others. 

Longan Nutrition Facts

Nutrients in 100 gm of Raw Longan Fruit


100 grams of raw longans contain around 15.14 grams of carbohydrates, 1.3 grams of protein, 1.1 gram of dietary fiber, and 83.75 grams of water. The calorific value is 60 kcal. Go through the following table for information about other nutrients in 100 grams of raw longans. 


Nutrient Value

Vitamin C 84 mg

Vitamin B1 0.031 mg

Vitamin B2 0.14 mg

Vitamin B3 0.3 mg

Calcium 1 mg

Magnesium 10 mg

Potassium 266 mg

Phosphorus 21 mg

Iron 0.13 mg

Manganese 0.052 mg

Zinc 0.05 mg



*Source: USDA National Nutrient Database


Nutrients in 100 gm of Dried Longan Fruit


The calorific value of 100 grams of dried longans is 286 kcal, and they contain 74 grams of carbohydrates, 5 grams of protein, 0.4 gram of fat, and 17.6 grams of water. Here is a list of nutrients in 100 grams of dried longans. 


Nutrient Value

Vitamin C 28 mg

Vitamin B1 0.04 mg

Vitamin B2 0.5 mg

Vitamin B3 1 mg

Calcium 45 mg

Magnesium 46 mg

Potassium 658 mg

Phosphorus 196 mg

Iron 5.4 mg

Manganese 0.2 mg

Zinc 0.22 mg



*Source: USDA National Nutrient Database


In short, longans contain several nutrients that are beneficial for human health. These fruits offer various health benefits too. They are also used in the traditional medicine of China, owing to their health benefits. In China and its neighboring countries, longans have been used as a remedy for stomach problems, like infections and pain. It is also said to be beneficial for wound healing, and in boosting the immune system. 


This fruit is also touted to be useful for fighting fatigue, anxiety, insomnia, and depression. It is said that longans can improve the rate of iron absorption in the body and so, they are used as a remedy for anemia. Being rich in potassium, longans are believed to be effective in maintaining a normal blood pressure level, and to reduce the risk of cardiac problems. It is also claimed to be useful in promoting oral and skin health.


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