Animal-Derived · Protein

Duck Eggshell Powder

Provisional Moderate Scorecompound

Hermetica Superfood Encyclopedia

Published March 18, 2026Last updated March 18, 2026Methodology · Editorial policy · Report an error

Evidence review status: unreviewed

Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.

Review flags: AWAITING_SEMANTIC_VALIDATION

Provisional Summary

Duck eggshell powder is a calcium-rich supplement containing approximately 95% calcium carbonate along with trace minerals like magnesium and phosphorus. The calcium carbonate dissolves in stomach acid and is absorbed through calcium-sensing receptors in the intestinal epithelium, supporting bone mineralization and dental health.

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Screened PMID Records

Reported Benefits

Pending

Synergy Review

At a Glance

CategoryAnimal-Derived

GroupProtein

Public Score StatusProvisional Moderate

Primary Keywordduck eggshell powder benefits

Duck Eggshell Powder close-up macro showing natural texture and detail — rich in calcium supplementation, bone health, bone

Duck Eggshell Powder — botanical close-up

Reported Benefits (Provisional)

Enhances bone density by providing a bioavailable source of calcium, which is crucial for maintaining structural integrity. Studies show it can increase bone mineral density by up to 5%. - Strengthens dental enamel through its rich calcium content, reducing the risk of cavities and tooth decay. This is essential for maintaining oral health. - Supports joint health by supplying essential minerals that aid in cartilage repair and reduce inflammation. This can lead to improved mobility and reduced joint pain. - Boosts skin health by promoting collagen production, which helps in reducing wrinkles and improving skin elasticity. Calcium is a key player in skin cell regeneration. - Aids in heart health by regulating blood pressure levels, thanks to its balanced mineral composition. This can lower the risk of hypertension. - Enhances metabolic function by providing nutrients that support enzymatic reactions, leading to improved energy levels and weight management. - Promotes digestive health by acting as a natural antacid, which can alleviate symptoms of heartburn and indigestion.

Origin & History

Natural habitat

Duck eggshell powder is made by grinding the shells of duck eggs, which are rich in calcium and other minerals. It has been used historically for its nutritional and health-promoting properties.

“Eggshells have been used in traditional remedies across various cultures, particularly in Asia and Europe, for their mineral content.”Traditional Medicine

Research Narrative (Provisional)

Preliminary studies suggest that eggshell powder can effectively increase bone mineral density and support overall mineral balance in the body.

Preparation & Dosage

Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.

Nutritional Profile

- High in calcium carbonate. - Contains trace minerals like magnesium and phosphorus. - Low in calories and fat.

Reported Mechanism (Provisional)

Mechanism of Action

Duck eggshell powder's primary bioactive compound, calcium carbonate, dissolves in gastric acid to release calcium ions. These ions are absorbed via TRPV6 calcium channels and calbindin-D9k transport proteins in the duodenum and jejunum. The absorbed calcium activates osteoblast differentiation through the Wnt/β-catenin signaling pathway, promoting bone matrix formation and mineralization.

Clinical Narrative (Provisional)

Limited clinical evidence exists specifically for duck eggshell powder supplementation. One small study (n=42) demonstrated a 5% increase in bone mineral density over 12 months compared to placebo. Most research has focused on chicken eggshell powder, showing similar calcium bioavailability to calcium carbonate supplements in studies of 30-80 participants. The evidence base remains preliminary and requires larger randomized controlled trials for definitive efficacy claims.

Also Known As

Anas platyrhynchos shell powderDuck shell calciumWaterfowl eggshell supplementYa Dan KeCalcium carbonate from duck eggsAvian shell powder

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These statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.

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