Quick summary
Eggshell membrane is a natural material derived from the inner lining of chicken eggshells, commonly used as a dietary supplement aimed at supporting joint, skin, and connective tissue health. While it contains collagen and structural proteins relevant to connective tissues, current research is still pending, and no definitive conclusions on its effects or safety in humans can yet be made.
What is it?
Eggshell membrane refers to the thin, fibrous film located between the eggshell and the egg white. This membrane contains collagen, glycosaminoglycans, and other proteins that are important for maintaining connective tissue structure. As a supplement, it is intended to provide these components to potentially support joint and skin health.
How it may work in the body
Eggshell membrane is proposed to support joint and skin health through the following mechanisms:
- Providing collagen and glycosaminoglycans, which are vital for cartilage and connective tissue integrity.
- Potentially modulating inflammatory processes associated with joint discomfort and tissue repair.
However, these mechanisms are inferred mainly from the known composition of eggshell membrane and preclinical studies. Definitive mechanisms in humans are not yet established due to limited research evidence.
Common supplement forms
- Powdered eggshell membrane
- Capsules or tablets containing eggshell membrane extract
Typical dosage and how it is used
There is currently no standardized or commonly recommended dosage for eggshell membrane supplements. Specific dosage information has not been established due to the pending status of clinical research. No official recommended daily intake (RDA) or adequate intake (AI) exists for eggshell membrane products.
Consumers should be aware that dosage and safety profiles require confirmation through future clinical studies.
Natural sources
Eggshell membrane is naturally sourced from the thin inner lining of chicken eggshells. This membrane is separated during processing to produce the supplement form.
Absorption and bioavailability
Information regarding the absorption and bioavailability of eggshell membrane components in humans is currently unavailable. Research into how well these proteins and other compounds are absorbed or utilized by the body has yet to be published.
Potential benefits: what does the evidence say?
Joint and connective tissue health
Eggshell membrane has been studied for its potential to support joint and skin health; however, human clinical evidence is insufficient at this time. There are no completed or published human clinical trials or systematic reviews conclusively demonstrating benefit.
As a result, claims regarding support for joint comfort or connective tissue integrity remain preliminary and require further substantiation.
Side effects and safety
Safety data for eggshell membrane supplements are currently limited, with no well-documented side effects reported in the available literature. Additionally, no known contraindications or special safety concerns have been explicitly identified.
Safety for pregnant and breastfeeding individuals has not been established due to limited evidence. No toxicity or risks related to overuse have been reported, but more comprehensive safety evaluations are needed.
Drug and supplement interactions
At present, no known drug or supplement interactions with eggshell membrane have been documented. However, the absence of evidence is not evidence of absence; cautious use is advised until more data become available.
Who should be careful?
People who are pregnant or breastfeeding, have medical conditions, or are taking medications should consult a healthcare professional before using eggshell membrane supplements, especially given the current lack of safety data.
Additionally, individuals planning surgery or with sensitivities related to egg products should exercise caution.
Pregnancy, breastfeeding and special populations
There is no available evidence confirming the safety of eggshell membrane during pregnancy or breastfeeding. Therefore, use by these populations is not recommended without medical supervision.
Quality, standardization and what to look for
When selecting eggshell membrane supplements, quality considerations include sourcing from reputable manufacturers and verification of product purity and safety. However, standardized formulations and doses are not well-defined due to limited clinical research.
Consumers should look for products that provide transparent ingredient information and consider third-party testing certifications whenever possible.
Frequently asked questions
- Is eggshell membrane the same as collagen supplements?
Eggshell membrane contains collagen along with other components like glycosaminoglycans, whereas typical collagen supplements usually provide collagen peptides from bovine, marine, or porcine sources. The composition and potential effects may differ. - Are there EU-authorized health claims for eggshell membrane?
Currently, no EU-authorized health claims exist for eggshell membrane supplements. - Can I use eggshell membrane supplements to treat joint pain?
Eggshell membrane is not approved to treat, cure, or prevent joint conditions. Research is inconclusive, and supplements should not replace medical treatments.
Evidence limitations
- No published completed human clinical trials or systematic reviews available.
- Absence of established safety, dosage, and bioavailability data.
- No EU-authorized health claims identified for eggshell membrane.
- Pending clinical research status necessitates cautious interpretation of any preliminary findings.
References
Last reviewed
June 2024
Disclaimer: This page is for informational purposes only and does not constitute medical advice. Always consult a healthcare professional before starting any new dietary supplement, especially if you are pregnant, nursing, have a medical condition, or are taking medication.