The claim “A 97-year-old orthopedic surgeon says this food can rebuild knee cartilage in just 24 hours” is a common health scam/clickbait format. There is no food proven to rebuild damaged knee cartilage in 24 hours.
Knee cartilage has very limited ability to repair itself because it does not receive much direct blood supply. A healthy diet can support joint health, reduce inflammation, and provide nutrients needed for normal tissue maintenance, but it cannot rapidly regrow worn cartilage.
Foods and nutrients that may support joint health include:
- Protein-rich foods
- Fish, eggs, poultry, beans, lentils, and dairy provide amino acids needed for tissue repair and muscle strength.
- Omega-3 rich foods
- Fatty fish (such as salmon and sardines), walnuts, and flaxseed may help support a healthier inflammatory balance.
- Vitamin C–rich foods
- Citrus fruits, berries, peppers, and broccoli help the body make collagen, a major component of cartilage.
- Colorful fruits and vegetables
- They provide antioxidants that support overall health.
- Bone and joint-supporting nutrients
- Adequate vitamin D, calcium, and other nutrients are important for bone health, especially in older adults.
For knee pain or cartilage problems, treatments with better evidence may include:
- Weight management if excess weight is putting stress on the knee.
- Strengthening exercises for the muscles around the knee.
- Physical therapy.
- Medical treatments tailored to the cause of the damage.
Be cautious with any advertisement promising instant cartilage regeneration, “one food cure,” or asking you to click before revealing a secret remedy. If you share the name of the food they claim works, I can explain what is actually known about it.
