One of the easiest ways to prevent and keep your joints healthy is enjoying a healthy, varied, and balanced diet. Vitamin C favours collagen synthesis, the main component of the joint's cartilage. Foods rich in vitamin C, such as oranges, tangerines, strawberries, kiwis, etc. provide joints with flexibility and firmness. Also foods rich in Omega 3 fatty acids, such as blue fish, cod liver oil, nuts, etc. are beneficial due to their anti-inflammatory properties.