The alkaline diet promotes eating foods that are alkaline, such as fruits, vegetables, nuts, and legumes, and avoiding acidic foods like meat, dairy, and processed foods. The theory behind the alkaline diet is that it can alter the body's pH levels. However, scientific evidence does not support the claim that diet can significantly change blood pH levels. While an alkaline diet includes many nutritious foods that can contribute to overall health, there is no conclusive evidence that it specifically helps improve bone health or prevent osteoporosis. It is essential to consult with a healthcare provider before making any significant dietary changes.