A healthy diet with plenty of water is the foundation for good health, regardless of whether or not you have PD. However, for those with PD, it is even more important. The reason why it is so critical for those with PD is that healthy eating can help keep your bones strong, thus decreasing the likelihood of a fracture if you fall. It also helps you fight constipation, which is common with PD. In this section, you will learn about which foods to eat if you have PD in order to maintain your bone health and activity level.