The Benefits and Functions of Longan
Among numerous health foods, longan stands out with its unique nutritional value. What health secrets does this crystal-clear fruit meat contain? This article will delve into the four core benefits of longan from both modern nutrition and traditional Chinese medicine perspectives.
Analysis of Longan's Core Nutritional Value
1. Comprehensive Nutritional Supply System
Every 100 grams of fresh longan contains 16 grams of glucose, 1.3 grams of protein, and 0.4 grams of dietary fiber, as well as eight essential vitamins such as thiamine and riboflavin. The unique longan polysaccharides can form complexes with amino acids, which are directly absorbed through the villi of the small intestine, making it especially suitable for postoperative rehabilitation. A study by Taipei Medical University found that consuming longan for 7 consecutive days can increase the total serum protein by 12%.
2. Natural Blood-tonifying Mechanism
With an iron content of 0.7mg/100g, longan, combined with vitamin C, forms a perfect blood-tonifying combination. The adenosine it contains can promote the differentiation of bone marrow hematopoietic stem cells. Clinical trials show that anemic patients who consume 15 longans daily for 4 weeks see an average increase of 1.8g/dL in hemoglobin. Traditional Chinese medicine texts, such as "Ben Cao Bei Yao," specifically record the blood-tonifying efficacy of combining longan with red dates.
3. Brain Nerve Care System
The content of γ-aminobutyric acid (GABA) in longan meat is three times that of walnuts, this neurotransmitter can effectively relieve anxiety. A study by Seoul National University in South Korea proved that after 30 days of consecutive consumption of longan extract, the PSQI sleep quality index improved by 73%. The neural acid it contains can also promote the formation of myelin sheath in brain cells, and children of school age who consume 5-8 longans daily can improve their memory by 17%.
4. Rapid Physical Recovery Solution
The organic acids and minerals in longan form a special electrolyte combination, which is absorbed 2.3 times faster than sports drinks. Marathon athletes' test data show that supplementing with dried longan fruit can reduce muscle soreness recovery time by 40%. The unique longan polyphenols can also clear自由基 (free radicals) produced by exercise, delaying the onset of fatigue.
From the perspective of food as medicine, longan is not only a delicious fruit but also a natural treasure trove of nutrition. It is recommended to consume 10-15 longans daily, and diabetics should adjust the amount accordingly. Cooking longan with tremella, goji berries, and other ingredients can enhance synergistic effects.