Turn what most people waste into a highly nutritious asset in your own kitchen! Making your own calcium supplement from eggshells is one of the easiest, most eco-friendly methods to practice self-sufficient and natural living. Eggshells are made up of mostly calcium carbonate and also contain proteins and trace elements such as strontium, fluoride, magnesium, and selenium , which may synergistically support bone health [ 1 , 2 ] and have even been shown to remineralize teeth [ 3 , 4 ]. One study concluded "Using ground eggshell to increase dietary calcium could be a highly equitable nutritional recommendation." A further study found c alcium absorption was as much as 64% greater from eggshell powder versus purified calcium carbonate. One reason may be that naturally occurring proteins found in eggshells aid in mineral absorption. You don’t need any fancy equipment, just a few basic kitchen tools. Directions: Rinse the shells After cracking eggs (keep membra...