Eggshell
Synopsis of Eggshell
History
Eggshell, the hard outer covering of an egg, has a longstanding history of medicinal use across diverse cultures. As early as ancient China and medieval Europe, finely powdered eggshell was employed as a remedy for a variety of ailments, particularly those related to bone health and calcium deficiency. Folk healers and traditional practitioners recognized eggshell as a rich, bioavailable source of calcium and trace minerals, using it to strengthen bones, teeth, and nails, as well as to support overall vitality.
In home remedies, eggshell powder was often mixed into food or beverages, or combined with lemon juice to create a calcium-rich tonic. This mixture was believed to enhance calcium absorption and was recommended for both children and the elderly to promote skeletal health. In some traditions, eggshells were also used to soothe digestive discomfort and support wound healing due to their mineral content and soothing properties.
Eggshell's versatility extended to herbal combinations, where it frequently complemented botanical ingredients. Traditionally, it was blended with herbs such as horsetail, nettle, or comfrey—plants also known for their mineral content—to create synergistic formulas that supported bone and joint health. In contemporary herbalism, eggshell powder is sometimes added to calcium-boosting blends or incorporated into topical preparations for skin and nail care.
The enduring use of eggshell highlights its remarkable nutritional and therapeutic potential. As a natural, sustainable source of essential minerals, it continues to find a valued place in both traditional and modern wellness practices, contributing positively to holistic health solutions.
Traditional and scientific validation
Eggshell, traditionally considered kitchen waste, has a long history of use in various cultures for its perceived health benefits, particularly as a natural source of calcium. Historical records indicate that powdered eggshell was consumed in folk remedies for bone health, dental care, and as a dietary supplement. In recent decades, scientific interest in eggshell has grown, leading to the development of eggshell-based nutritional products.
Eggshell is primarily composed of calcium carbonate (about 94%), but also contains small amounts of protein and other minerals such as magnesium and phosphorus. Several studies have investigated the bioavailability of calcium from eggshell powder. For instance, a randomized controlled trial published in International Journal of Clinical Pharmacology Research (1999) found that eggshell powder was as effective as purified calcium carbonate in supporting bone mineral density in postmenopausal women. Another study in Food & Function (2013) suggested that calcium from eggshell is highly absorbable and may contribute to improved bone strength.
Moreover, some evidence points to potential benefits beyond calcium supplementation, such as supporting cartilage health due to the presence of eggshell membrane proteins. However, more robust clinical trials are necessary to confirm these effects and to determine optimal dosages and safety for long-term use.
In summary, eggshell offers a sustainable and natural alternative for dietary calcium supplementation, with early scientific validation supporting its efficacy and safety. While more research is needed, especially regarding additional health effects, current evidence is promising and highlights the valuable contribution of eggshell to nutritional products.
Eggshell is used for these health conditions
Broken Bones (Traditional)
Calcium Deficiency (Scientific)
Osteoporosis (Scientific)
Eggshell is used to support these body systems
Joints (Scientific)
Nails (Scientific)
Skeletal System (Bones) (Scientific)
Teeth (Scientific)