No fruit can directly “regenerate collagen in the knees.” That idea is a bit overstated. What certain fruits can do is support your body’s own collagen production, mainly because they’re rich in vitamin C and antioxidants, which are needed to build and protect collagen in cartilage, tendons, and skin.
Two of the best options are:
Guava
Guava is one of the richest natural sources of vitamin C. Vitamin C is essential for collagen synthesis, which helps maintain cartilage health in joints like the knees.
Kiwi
Kiwi is also high in vitamin C and contains antioxidants that help reduce oxidative stress, which can damage joint tissues over time.
If your goal is knee joint support, fruits like these help indirectly by supporting collagen formation, but they work best alongside adequate protein intake (amino acids), vitamin D, and regular low-impact exercise like walking or swimming.
If you want, I can list foods or a simple diet plan specifically for knee joint pain or cartilage support.
