“Weak bones” can reflect true osteoporosis, muscle weakness, or correctable issues like vitamin D deficiency. Start with measurable evaluation: clinician assessment, risk profiling, and bone mineral density testing if indicated. Build the nutrition base: age-appropriate calcium, vitamin D status, adequate protein, and sufficient energy intake. Add a safe exercise plan: gradual resistance training + walking + balance work. Fall-risk reduction (home safety, vision checks, balance training) is a major fracture-prevention lever. Rework smoking/alcohol habits and manage excessive salt/caffeine patterns. If you have prior fractures, rapid height loss, severe back pain, or a strong family history, seek prompt evaluation. Some people require medication; nutrition and exercise act as the performance layer that improves outcomes.