That claim is misleading and not medically accurate.
🦴 “Knee runs out of collagen” — what’s true?
Your joints don’t suddenly “run out” of collagen like an empty bottle. Instead, with age or conditions like osteoarthritis, the cartilage can gradually:
- wear down
- lose elasticity
- become less smooth
But this is a complex biological process, not something fixed by one ingredient.
🥚 What about eggshell?
Eggshells are sometimes promoted online because they contain:
- calcium carbonate (mostly)
- trace minerals
There is also something called eggshell membrane (the thin layer inside the shell), which does contain small amounts of collagen-related proteins—but:
👉 There is no strong clinical evidence that eating eggshell or eggshell “recipes” can rebuild knee cartilage or restore lost collagen in joints.
⚠️ Risks of eggshell “remedies”
- possible bacterial contamination (like Salmonella if not properly treated)
- sharp particles if not processed correctly
- digestive irritation
- false sense of treatment while real joint issues worsen
đź‘Ť What actually supports joint health
Evidence-based approaches include:
- maintaining a healthy weight (reduces knee stress)
- regular low-impact exercise (walking, swimming, cycling)
- physiotherapy/strength training
- adequate protein intake
- vitamin D and calcium (for bone health)
- medically studied supplements like glucosamine for some people (results vary)
For persistent pain or stiffness, it’s important to check for conditions like:
- Osteoarthritis
🧠Bottom line
Eggshell “collagen cures” for knees are social media exaggerations. They don’t rebuild cartilage or replace medical treatment.
If you want, I can break down which supplements actually have some evidence for knee pain relief and which ones are mostly marketing.
