Eggshells are a "Free" Calcium Supplement

Eggshells contain many of the building blocks that are required to build strong bones and teeth, including calcium, protein, magnesium, selenium and strontium, along with a number of other nutrients.

What eggshells don't have is a good supply of vitamins D3 and K2, which is also essential for getting the calcium into the bones and teeth, where calcium belongs and away from the soft tissues and blood vessels, where calcium doesn't belong. I recommend 10 micrograms of the MK7 version of vitamin K2, for every 1,000 IUs of vitamin D3. If you are on blood thinners, consult your prescribing physician and pharmacist prior to taking any vitamin K supplem

Even though calcium rich foods and supplements are readily available, calcium deficiencies are still quite common.

Sometimes, high blood calcium means that someone is losing bone density and the calcium is leaching out of the bones. This can lead to osteoporosis.

Symptoms of a calcium deficiency include fatigue, mood changes, muscle stiffness, spasms and lapses in memory.

Ground eggshells can be placed in several types of foods to give your calcium levels a quick boost without altering the taste.

Preparing eggshells correctly is important to avoid salmonella.

This link will provide full instructions.

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