What are 3 thing i can do on diet and exercise in my 20s to have healthy joints and prevent arthritis when i'm older? please be specific. thanks :)

Moderation: 1. Maintain healthy weight. No specific diets have been demonstrated to prevent arthritis. 2. Be active to maintain bone density with moderate load bearing exercises but avoid extreme heavy weight training which can damage joints especially the elbows and shoulders 3. Avoid traumatic injuries to your joints from contact sports which can lead to early post traumatic arthritis.