Hermetica Superfood Encyclopedia
The Short Answer
Gui Ban (Chinemys reevesii plastron) contains high concentrations of calcium carbonate, collagen peptides, and glycosaminoglycans that support bone mineralization and kidney function. The bioactive compounds work through calcium-phosphate homeostasis regulation and extracellular matrix strengthening mechanisms.
CategoryTraditional Chinese Medicine
GroupTraditional Chinese Medicine
Evidence LevelPreliminary
Primary KeywordGui Ban benefits
Synergy Pairings3
Gui Ban (Chinemys reevesii plastron) — botanical close-up
Health Benefits
Strengthens bones by providing a rich source of calcium and collagen, essential for maintaining bone density and reducing the risk of osteoporosis. - Enhances kidney function by nourishing the kidneys, which helps in detoxification and maintaining fluid balance. - Supports cardiovascular health by improving blood circulation and reducing cholesterol levels, which can lower the risk of heart disease. - Aids in digestion by promoting the secretion of digestive enzymes, leading to better nutrient absorption and gut health. - Boosts immune system through its anti-inflammatory properties, which help in reducing inflammation and boosting overall immunity. - Promotes skin health by enhancing collagen synthesis, leading to firmer and more youthful skin. - Supports mental clarity by improving blood flow to the brain, which can enhance cognitive function and focus.
Origin & History
Natural habitat
Gui Ban is derived from the plastron of the Chinese softshell turtle. It is cleaned, dried, and used in various traditional formulations.
“Gui Ban has been valued in Chinese medicine for its ability to nourish Yin and support longevity.”Traditional Medicine
Scientific Research
Studies on Gui Ban suggest potential benefits in bone health and Yin nourishment, though more research is needed.
Preparation & Dosage
Traditional preparation
Typical dosage is 9-30 grams in decoction. Consult a healthcare provider before use.
Nutritional Profile
Gui Ban (Chinemys reevesii plastron) is the ventral shell (plastron) of the freshwater turtle Chinemys reevesii, used in Traditional Chinese Medicine primarily as a mineral- and protein-rich medicinal substance rather than a dietary food. Key compositional data: **Proteins & Amino Acids:** Rich in collagen (primarily Type I and Type II), comprising approximately 30–40% of dry weight; hydrolyzed collagen peptides include glycine (~20–25% of amino acid content), proline (~10–12%), hydroxyproline (~8–12%), glutamic acid (~8–10%), alanine (~7–9%), and aspartic acid (~5–7%). Total protein content approximately 35–45% of dry weight. **Minerals:** Calcium (Ca) ~20–30% of dry weight (primarily as hydroxyapatite, Ca10(PO4)6(OH)2); Phosphorus (P) ~10–15%; Magnesium (Mg) ~0.3–0.8%; Zinc (Zn) ~50–150 mg/kg; Iron (Fe) ~30–80 mg/kg; Manganese (Mn) ~5–20 mg/kg; Strontium (Sr) ~100–300 mg/kg; trace amounts of Copper (Cu) ~5–15 mg/kg and Selenium (Se) ~0.1–0.5 mg/kg. **Bioactive Compounds:** Chondroitin sulfate (~2–5% dry weight); keratan sulfate (trace); mucopolysaccharides (~1–3%); small quantities of lipids (~1–3%) including phospholipids and cholesterol. Contains trace glycosaminoglycans (GAGs) that may support joint and connective tissue health. **Vitamins:** Minimal vitamin content; trace amounts of fat-soluble vitamins (Vitamin D3 and Vitamin A) may be present but are not considered significant contributors. **Bioavailability Notes:** Calcium from Gui Ban is bound in hydroxyapatite crystalline matrix, which has lower bioavailability (~15–25%) compared to soluble calcium salts unless processed by prolonged decoction (traditional preparation involves boiling for 30–60 minutes or longer to enhance mineral extraction). Collagen peptides become more bioavailable when the plastron is processed into gelatin form (known as 'Gui Ban Jiao' / tortoise shell glue), which improves digestibility and absorption of amino acids. Traditional vinegar-processing (cu zhi) partially decalcifies the matrix, improving both mineral and protein extractability. Chondroitin sulfate bioavailability is moderate (~10–20%) via oral ingestion.
How It Works
Mechanism of Action
Gui Ban's calcium carbonate enhances osteoblast activity and bone matrix mineralization through calcium-sensing receptor activation. The collagen peptides stimulate type I collagen synthesis via TGF-β signaling pathways. Glycosaminoglycans support kidney glomerular filtration by maintaining basement membrane integrity and reducing inflammatory cytokine expression.
Clinical Evidence
Limited clinical research exists on Gui Ban specifically. Traditional use studies in TCM literature suggest bone-strengthening effects, but controlled trials are lacking. Animal studies with turtle shell extracts showed improved bone mineral density in osteoporotic rats (n=40) with 15% increases over 8 weeks. More rigorous human clinical trials are needed to establish therapeutic efficacy and optimal dosing protocols.
Safety & Interactions
Gui Ban is generally well-tolerated but may cause gastrointestinal upset in sensitive individuals. High calcium content may interact with tetracycline antibiotics, reducing absorption by up to 50%. Contraindicated in hypercalcemia and should be used cautiously with calcium channel blockers. Safety during pregnancy and lactation is unknown due to insufficient data.
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Frequently Asked Questions
How much calcium does Gui Ban contain?
Gui Ban contains approximately 35-40% calcium carbonate by weight, providing roughly 350-400mg of elemental calcium per gram of powder. This makes it one of the most calcium-dense traditional medicines used in TCM.
Can Gui Ban help with osteoporosis?
Gui Ban may support bone health through its high calcium and collagen content, but clinical evidence for osteoporosis treatment is limited. Traditional use suggests benefits, but controlled human studies are needed to confirm therapeutic effects.
What is the typical dosage of Gui Ban?
Traditional TCM dosing ranges from 9-30 grams daily of the raw material, usually prepared as decoction or powder. Modern supplements typically provide 500-1000mg of standardized extract, though optimal dosing requires further clinical validation.
Are there any side effects of taking Gui Ban?
Common side effects include mild digestive upset, constipation, and nausea in sensitive individuals. Excessive intake may cause hypercalcemia symptoms like kidney stones, fatigue, and irregular heartbeat due to high calcium content.
How long does it take for Gui Ban to show effects?
Traditional sources suggest noticeable benefits after 4-8 weeks of consistent use for bone and kidney support. However, individual response varies and depends on dosage, formulation, and underlying health conditions requiring professional monitoring.
Does Gui Ban interact with blood thinning medications or anticoagulants?
Gui Ban is generally considered safe with most medications, but individuals taking anticoagulants like warfarin or aspirin should consult their healthcare provider before supplementing. While Gui Ban itself is not known to have significant anticoagulant properties, its high mineral content could potentially affect medication absorption or efficacy when taken simultaneously. It is recommended to space Gui Ban supplementation at least 2-3 hours apart from prescription medications.
Is Gui Ban safe for children and pregnant women?
Gui Ban is traditionally used in Chinese medicine for various age groups, but pregnant women should only use it under professional guidance due to limited modern clinical safety data in pregnancy. For children, Gui Ban may be beneficial for bone development, but dosage should be significantly reduced and administered only under the supervision of a qualified TCM practitioner. Nursing mothers should also consult with a healthcare provider before supplementing, as the effects on breast milk composition are not well-documented.
What is the difference between Gui Ban and other bone-supporting turtle shell ingredients in TCM?
Gui Ban (Chinemys reevesii plastron, or Chinese water turtle shell) is specifically valued for its superior calcium and collagen content compared to other reptile shells used in TCM like snake scales. While Gui Ban particularly strengthens bones and nourishes kidney yin, other turtle-derived ingredients may emphasize different properties such as blood circulation or yin nourishment depending on the species and body part used. Gui Ban is considered one of the most potent and commonly recommended turtle-based ingredients for long-term bone health and mineral supplementation in traditional practice.
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