Description
Dried Longan
Gui Yuan · 桂圆 · Long Yan Gan (龙眼干)
Botanical Name : Longan Arillus
Category : Blood Tonic
Warm in nature. Sweet in taste. It enters the heart and spleen meridians.
People who benefit most from Longan fit the Qi Deficient body type, where Heart Blood deficiency shows up as poor sleep, anxiety, and overthinking. The fruit may help calm the spirit when eaten in the evening, while people with phlegm-damp or full Heat patterns should avoid it.
Small sweet dried fruit that builds Blood, calms the mind, and supports restful sleep. Called Dragon Eye in English.
TCM Properties
Longan resembles a small, sweet battery for the Heart, quietly recharging Heart Blood the way a slow trickle-charge rebuilds a drained phone. Each dried fruit concentrates warm, sweet nourishment into a form that may help calm an overactive spirit without the heaviness of stronger tonics, supporting restful sleep through gentle, consistent replenishment.
Health Benefits
Nourishes the Heart and Spleen
Longan’s sweet, warm nature specifically targets the heart and spleen, the two organs most involved in producing and circulating blood. For people whose worry and overthinking have depleted these systems, longan provides a warm, sweet replenishment that feels immediately comforting.
Nourishes Blood
As a blood tonic, longan is sweeter and warmer than most alternatives. It is particularly suited for blood deficiency that accompanies cold signs, such as cold hands, pale lips, and a pale complexion. Its warming quality helps circulate the blood it builds.
Calms the spirit and improves sleep
When heart blood is deficient, the spirit becomes restless, producing the kind of sleep where you toss and turn with a busy mind. Longan nourishes the heart blood that anchors the spirit, making it a traditional bedtime remedy for insomnia from depletion rather than from excess energy.
May support memory and concentration
In TCM, clear thinking depends on adequate heart blood and spleen qi. Longan’s dual action on both systems supports the cognitive foundation. Classical texts recommend it for students and scholars facing mental exhaustion from prolonged study.
Commonly Used For
· People with insomnia, palpitations, and anxious overthinking from depletion
TCM Interpretation: When heart blood is low, the heart lacks the substance to anchor the spirit. The result is a mind that will not quiet down at night, accompanied by a racing or fluttering sensation in the chest. Longan directly replenishes this blood and calms the spirit.
Why Longan Helps: A small bowl of longan and red date tea before bed is a traditional Chinese remedy for this exact pattern. The warmth and sweetness are comforting in a way that goes beyond the pharmacological.
· Those with pale complexion and fatigue from blood deficiency with cold
TCM Interpretation: Blood deficiency with cold signs requires a warming blood tonic. Longan’s warm nature both builds blood and promotes its circulation to the extremities, addressing the coldness that accompanies the deficiency.
Why Longan Helps: Unlike neutral or cool blood tonics, longan actively warms while it nourishes. This makes it ideal for people whose blood deficiency manifests with cold rather than heat signs.
When Sleep Issues Trace Back to Heart Blood
Longan suits some sleep patterns and not others. Match yours before use.
| If This Sounds Like You | The Signal | Start Here |
|---|---|---|
| Difficulty falling asleep with racing thoughts and palpitations | Heart Blood deficiency failing to anchor the spirit | Eat 10-15 dried longan in the early evening, 4-5 times per week |
| Poor memory and fatigue after nights of broken sleep over weeks | Spleen and Heart Blood depletion from overthinking | Simmer longan with red dates and rice for a bedtime congee |
| Restless sleep with vivid dreams and a coated tongue | Phlegm-heat or damp-heat disturbing the Heart | Avoid longan and consider cooling herbs like lotus seed or chrysanthemum |
Which Body Types Benefit Most
Common Usage
· in soup, decoction and tea
· Culinary
Simmer 10-15 dried longan in water for 10 minutes as tea. Add to congee with red dates.
Dosage: 10-15g dried daily.
Preparation Notes: Because Longan is warm, use cautiously in people who run hot. For tea, steep 5-10 minutes. For soup, simmer 30-60 minutes. Avoid overcooking as prolonged heat may reduce active compounds. Store in an airtight container in a cool, dry place.
Dietary Advice
Eat 10 to 15 dried longans as an evening snack, or simmer with red dates and a small amount of rock sugar for a bedtime tea. For sleep support, take 30 minutes before bed. Avoid eating large amounts during the day if you tend to run warm, as longan’s warming nature can cause internal heat with excessive consumption. If you experience mouth ulcers or dry mouth after eating longan, reduce the amount.
Precautions
- Avoid during acute colds, fever, sore throat, cough or infections
- Not suitable for Damp Heat or phlegm patterns
- Not for people who run warm internally
Consultation with a physician / healthcare professional is advised prior to consumption for those with diabetes, any ongoing medical conditions, known allergies, or individuals on medication, especially when you have underlying health conditions.
** Disclaimer : Not a substitute for medicine. Individual results may vary.
Frequently Asked Questions
What does longan taste like?
Does longan help with sleep?
Longan vs red dates?
