Why does a good nutrition help your bones, and how to make the stronger, please answer in a paragraph if you can1

Explanation: Well, A healthy balanced diet will help you build strong bones from an early age and maintain them throughout your life. You need sufficient calcium to strengthen your bones and vitamin D to help your body absorb calcium. The bones become porous and fragile, the skeleton weakens, and the risk of fractures greatly increases. ... In younger and older adults, a nutritious diet helps preserve bone mass and strength. And in those who have had a fracture, it speeds and aids recovery and reduces the risk of having another fracture.