Eggshell-Never throw them away

Egg shells are a source of calcium
Never throw away in the garbage. It is a powerful potential useful source of energy.

In addition  calcium and protein,eggshell also contain small amounts of other minerals,including stronitum, fluoride,magnesium and selenium,just like calcium these minerals may play a role in bone health

While eggs are an important source of protein and staple breakfast food. Eggshells are a great,inexpensive,natural source of calcium,it is easily accessible for the body.

Reason for eggshell
Feed them to your chickens. ...

Use the shell's membrane as an all-natural bandage.
Boil the eggshells in your coffee.
Sprinkle the eggshells around your garden to deter pests.
Give your tomatoes a calcium boost.
Eat them.
But then, it is important to grind well into powder and ensure you eat it same day you prepare it.
Use eggshells to start seedlings.
Toss them in the compost.

How to prepare Eggshell.
Collect a tray full of eggshells.
Place it in the ovem for one hour at a temperature of between 150c to 180c. This will sterilze any micro-organisms and dry the eggshell
Crush the eggshells
Use a coffee grinder to turn into a fine powder
Store in a sealable container