Eggshells are a cost-effective and efficient source of calcium.
You can either make your own eggshell supplements at home or purchase pre-made eggshell powder from health food stores.
For most people, getting enough calcium through diet is straightforward.
Read Also: 5 Potential Side Effects Of Eating Too Many Eggs Daily
However, some individuals may struggle to meet their calcium needs due to restrictive diets, low food intake, or food shortages.
For these people, affordable calcium sources like eggshells can be very helpful. Additionally, using eggshells is a great way to reduce kitchen waste, even if just a little.
Eggshell Powder as a Calcium Supplement
Eggshells primarily consist of calcium carbonate, along with small amounts of protein and other organic compounds.
Calcium carbonate is the most common natural form of calcium, found in seashells, coral reefs, and limestone, and is widely used in supplements due to its low cost and availability.
Research involving rats and piglets confirms that eggshells are a rich source of calcium, with absorption rates comparable to pure calcium carbonate.
Read Also: Health Benefits Of Eggs
Some studies even suggest that eggshell calcium may be absorbed more effectively due to the presence of proteins in the eggshells.
In addition to calcium, eggshells contain trace amounts of minerals such as strontium, fluoride, magnesium, and selenium, which may also support bone health.
Evidence suggests that calcium from eggshell powder may be better absorbed than pure calcium carbonate, making it an effective calcium supplement.
Potential Benefits for Osteoporosis
Osteoporosis, characterized by weak bones and an increased risk of fractures, affects millions globally.
While aging is a major risk factor, inadequate calcium intake can also contribute to bone loss and osteoporosis.
For those with insufficient dietary calcium, supplements like eggshell powder can help meet daily needs.
In one study, postmenopausal women with osteoporosis who took eggshell powder, along with vitamin D3 and magnesium, experienced significant improvements in bone mineral density.
Eggshell powder may also be more effective than purified calcium carbonate in reducing osteoporosis risk.
A study involving Dutch postmenopausal women found that eggshell powder improved bone mineral density in the neck, while purified calcium carbonate had no significant effect.
Eggshell powder may enhance bone strength in individuals with osteoporosis and might be more effective than purified calcium carbonate supplements.
Potential Benefits of Eggshell Membrane
The eggshell membrane, found between the eggshell and egg white, consists mainly of collagen and includes small amounts of chondroitin sulfate and glucosamine.
Though these nutrients are present in minimal quantities, some research suggests that eggshell membrane supplements may benefit joint health.
Supplements made from eggshell membranes may offer nutrients that could support joint health, although further research is needed to confirm their effectiveness.
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