What exactly is eggshell membrane and is there any truth to using eggshell membrane for joint pain? Eggshell is made almost entirely (about 97 percent) of calcium carbonate crystals. It is a ...
You know that arguably quite gross membranous bit of an egg that makes preparing boiled eggs far more difficult than it should be? Well, over on TikTok, people are touting its alleged health benefits.
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