Restrict Menu to Only show pages the user has access to

Questions
1

Using Umbraco 8.

Trying to create a menu that only shows the pages the user has access to. If the user is not in a group (Role) that the page has been restricted to, then it should not show on the menu.

Using var site = Model.Root().site.Children.Where(x => x.IsVisible());

I do not see any properties in the child pages that would help me.

Any help appreciated.

This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/106314-restrict-menu-to-only-show-pages-the-user-has-access-to