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Updated on November 19, 2018
Longan. Wikipedia
Longan. Wikipedia

God in His wisdom gives different parts of the world assorted fruits peculiar to their own climate. The longan (dragon eye in Chinese) fruit tree is found in China, and south east Asia. It is now grown also in subtropical states of America. The fruit is similar to that of the lychee which is more well known to the rest of the world. The fruit is smaller in size and the colour is yellow brown. The size of the longan is like that of a grape, only more round with a big, black, round, ebony seed, which the Chinese described as dragon's eye. They are mostly sold in bunches and in pounds. Longan is used in herbal preparations in China and can be eaten either raw, dried or cooked.


I spoke to Dr. Robin J. Chiu in church during lunch break about my frequent leg cramps at night. and he advised me to eat longan. I told him that longan was sweet and I am a border line diabetic and was afraid to try. However, I changed my mind when after church service, our family went for food shopping for the week. I bought longan for $3.50 (1 1/2 lb) wrapped in cellophane which lasted me for a week.. That night I ate 10 of the fruit and there was no leg cramps that night. Subsequently, I tried with 6, 8 of the fruit to see how it works.

Besides my leg cramps, I also suffer from rapid heart beat and my heart became much calmer. Earlier, I had asked the church to pray for my heart problem. I had undergone two Thallium Stress Test (5 hours) and had a Holter monitor (ECG) (24 hours). God works in mysterious ways. Praise and thank God, eating longan seemed to do the trick, and I was excited the next day.and felt that I must search the web for more information about the fruit in order to write about it.


What causes night time leg cramps has never been discovered by doctors in any hospital or laboratory. However, the causes may be due to:

  • Muscle fatigue
  • Heavy exercising
  • Dehydration
  • High weight (not necessarily obesity)
  • Electrolyte imbalances
  • Medications

Heart Beat
Heart Beat



The following medical conditions are some of the possible causes of Rapid Heart Beat.. There are likely to be other possible causes, so ask your doctor about your symptoms.
Normal heart rate increases as response to various situations:

  • Exercise or exertion
  • Large meal
  • Emotion
  • Nervousness
  • Anxiety
  • Excitementt
  • Anger

Nutrition Wellness

Longan contains several vitamins and minerals, including iron, magnesium, phosphorus and potassium, and large amounts of vitamins A and C. In traditional Chinese medicine, longan is considered to have a sweet taste and warm energy, and is associated with the Heart and Spleen meridians. It is used to relieve rapid heartbeat, insomnia, forgetfulness and anxiety associated with blood and qi deficiency. Combined with other herbs such as ganoderma and spirit poria, longan promotes tranquility and calms the spirit. It also increases physical stamina.

How much longan should I take?

The average dose of longan is 9-15 grams, served as a decoction by means of simmering several longan fruits in boiling water. Longan may also be eaten raw or in slices, and the pulp of the fruit can be mashed or added to other beverages.

What forms of longan are available?

Whole, raw or processed longan is available at many Asian markets and Chinese herbal shops. Some stores may sell longan powders.

What can happen if I take too much longan? Are there any interactions I should be aware of? What precautions should I take?

Longan is considered a safe herb. The American Herbal Products Association has given longan fruit a class one rating, meaning it can be consumed safely when used appropriately; however, eating excessive amounts of longan may cause indigestion.


Healing Centre

An alternative healing method Syndrome (b)
Deficiency of both heart and spleen

Palpitations, insomnia, night sweats, anorexia, general weakness, sallow complexion, pale tongue with thin and whitish coating and thready pulse.

To treat by Herbal medicine

Therapeutic principle: Replenishing qi and tonifying the blood, invigorating the spleen and nourishing the heart.


Decoction for Invigorating the Spleen and Nourishing the Heart. Bighead atractylodes rhizome (Bai Zhu) 30g, Poria with hostwood (Fu Sheng) 30g, Astragalus root (Huang Qi) 30g. Longan aril (Long Yan Rou) 30g, Wild jujuba seed (Suan Zao Ren) 30g, Ginseng (Ren Shen) 15g, Aucklandia root (Mu Xiang) 15g, Prepared licorice root (Zhi Gan Cao) 8g, Chinese angelica root (Dang Gui) 3g, Polygala root (Yuan Zhi) 3g.


Dried longans are high in iron and are used as a blood tonic. It may help the problem of leg cramps. The most frequent cause of leg cramps may be due to lack of a mineral deficiency of calcium and/or magnesium. It can also be a sign of electrolyte imbalance due to a lack of potassium. Cramps are a sign of electrolyte imbalance often caused by a lack of potassium. and according to Nutritional Wellness, longan has high potassium value.

Red Chinese dates and longan
Red Chinese dates and longan


  • 1. You can add fresh or dried longan to your favourite oatmeal breakfast. 10 dried longan should be sufficient for your taste.
  • 2. Another easy recipe is to add fresh or dried longan to jello. recipe. Add as much or little according to your taste.
  • 3. Simmer Chinese pitted red dates (15) together with 10 (more or less according to taste) dried longans in 5 cups of water for half an hour and drink the concoction before going to bed. This helps leg cramps to subside.

God has given us longan, another tasty fruit that not only satisfies our palate, but helps us to combat rapid heart, insomia and dreaded leg cramps in the night. Longan is rather cheap compared with other fruits and medication for the problems. I paid $3.50 for 1 1/2 lb of fresh exotic longan fruit and it lasted me one week. I not only get less leg cramps but also my heart beats return to normal faster. The fruit is now grown in subtropical USA. Praise and thank God the lovely, tasty longan! God knows our needs and He provides all types of fruit throughout the world to combat diseases.

Longans with the Tropical Growers of /south Florida

Longans with the Tropical Fruit Growers of South Florida ...

► 3:38► 17, 2009 - Uploaded by TropicalFruitGrowersThe Tropical Fruit Growers of South Florida present - Longans - with host Julian Lara. ...


God's Fruit Kiwi For Heart, Asthma


Do you know that longan is similar to that of lychee?

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Do you know that leg cramps are a sign of elctrolyte imbalance often caused by a lack of potassium?.

See results

Do you know that dried longans are high in iron and can be used as a blood tonic?

See results

© 2010 einron


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    • einron profile imageAUTHOR


      4 years ago from Toronto, Ontario, CANADA

      You may use them but you must acknowledge my name as source. Am glad that you found the articles worthy.

    • profile image


      4 years ago

      I am request permission to use some of your articles in my book the history of food to help this and the next generation to live healthier lives.

    • einron profile imageAUTHOR


      8 years ago from Toronto, Ontario, CANADA

      Thanks for your nice comments.

      God bless.

    • ellahall2011 profile image


      8 years ago

      Wow nice, great job Ma'am.

    • einron profile imageAUTHOR


      9 years ago from Toronto, Ontario, CANADA

      Lita C. Malicdem

      Try it and you wont be disappointed. Would like to hear if it helps you. Thanks for visiting.

    • Lita C. Malicdem profile image

      Lita C. Malicdem 

      9 years ago from Philippines

      This is a great find for me. I often have leg cramps, due to diabetic neuropathy. Longan is not too sweet to risk my sugar level. But I ignore this fruit because of the bigger than meat seed. With your testimony, I'll go find some and give it a try, too. Thank you.

    • einron profile imageAUTHOR


      9 years ago from Toronto, Ontario, CANADA


      I am glad that longan has helped your leg cramps. Vitaman E should also help. I thank you for answering for many do not write.

    • franciaonline profile image


      9 years ago from Philippines

      Hi einron,

      Your hub on longan is helping me deal with my leg cramps that usually come in the middle of the night and at dawn. I usually don't have cramps after eating longan. But last week, I got the cramps again and I immediately went out to buy longan. This hub will help a lot of people in the world! A million thanks!

    • einron profile imageAUTHOR


      9 years ago from Toronto, Ontario, CANADA

      DeBorrah K. Ogans

      I did answer you earlier, but there was a glitch, and your comments disappear from view. It just appear again.

      It is good that you would try out something, for it you dont try, you will not know the answer.

      Thanks for visiting site.

    • einron profile imageAUTHOR


      9 years ago from Toronto, Ontario, CANADA


      You will probably get them in Chinese, Vietnamese supermarkets. Loblaws in Canada bought over T&T, a Chinese supermarket and there is where I got my longan.

      I bought 8 oz. for $5.99 Canadian and I take about 7 dried longans and just eat them before I go to bed. I like them better than lychee, which is supposed to be superior to longan, but it is dried longan which is used in Chinese medicine.

    • DeBorrah K. Ogans profile image

      DeBorrah K Ogans 

      9 years ago

      Einron, Interesting hub! I must try this I am always looking for ways to improve... I have never heard of this fruit? I learned something new! Thank you for sharing, In HIS Love, Peace & Blessings!

    • hung69noel profile image


      9 years ago

      hmm interesting. I've never had a longan in my life. Can I find this in any supermarket? It kind of looks like leeche. I'm going to get it on my next run to the market. Thanks!

    • einron profile imageAUTHOR


      9 years ago from Toronto, Ontario, CANADA

      Earth Angel

      I find longan to be a good treat instead of eating sweets and they are not expensive at all. Glad that you are adventurous.

    • einron profile imageAUTHOR


      9 years ago from Toronto, Ontario, CANADA

      ethel smith

      Thanks for offering alternative treatments. Longan not only helps my leg cramps, but my rapid heart beatand insomnia.

    • Earth Angel profile image

      Earth Angel 

      9 years ago

      GREAT Hub einron!!

      I have never heard of longan; thank you so much for sharing!! I will go and find out more!! It sound like a wonderful addition to any diet!!

      Blessings always, Earth Angel!!

    • ethel smith profile image

      Ethel Smith 

      9 years ago from Kingston-Upon-Hull

      eating bananas can help and placing a magnet under your bottom shett, believe it or not


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