That claim is not supported by good medical evidence.
🦴 What’s wrong with the claim?
The idea is usually:
“When your knee loses collagen, eat eggshells (or an eggshell recipe) and your joints will recover.”
But:
- Knee cartilage and joint problems are complex and aren’t fixed by a homemade eggshell remedy.
- Eggshells are mostly calcium carbonate, not collagen.
- Eating eggshells does not directly replace lost collagen in the knee.
🥚 Are eggshells useful at all?
Eggshells contain calcium, and some processed eggshell-derived calcium products have been studied as supplements. However:
- Raw or homemade eggshell preparations may carry contamination risks if not prepared properly.
- They are not a proven treatment for arthritis, knee pain, or cartilage loss.
🦵 What actually affects knee health?
Common causes of knee pain include:
- Osteoarthritis
- Injuries to cartilage or ligaments
- Excess body weight
- Overuse or aging
Evidence-based approaches may include:
- Exercise and physical therapy
- Maintaining a healthy weight
- Appropriate pain management
- Medical evaluation when symptoms are significant
🧠 About collagen
Collagen supplements and collagen-rich foods are popular, but the evidence for major improvements in knee cartilage is mixed. They are certainly not a “lifesaver” or a cure.
Bottom line
“Eggshells are a lifesaver when the knee loses collagen” is an exaggerated social-media health claim. Eggshells contain calcium, but they are not a proven remedy for restoring knee collagen or curing joint problems.
