When the knee runs out of collagen, eggshell is the solution.
That claim is partly based on real research but is misleading as written. Eggshells contain calcium, but the research on joint health is primarily about the thin eggshell membrane, not eating ordinary crushed eggshell. The membrane contains collagen and other compounds, and several small randomized trials have found that standardized eggshell-membrane supplements may modestly reduce …









