Is there a way to retrieve a post data through a menu

Hello everyone,
I am trying to use flexslider on my theme and I would like to use a custom menu item to reorganize the order. Is it possible to get post information by the menu ID. So far it only shows the latest post on the slide

<?php

// Enqueue Flexslider Files

    function wptuts_slider_scripts() {
        wp_enqueue_script( 'jquery' );

      //  wp_enqueue_style( 'flex-style', get_template_directory_uri() . '/inc/slider/css/flexslider.css' );

        wp_enqueue_script( 'flex-script', get_template_directory_uri() .  '/js/jquery.flexslider-min.js', array( 'jquery' ), false, true );
    }
    add_action( 'wp_enqueue_scripts', 'wptuts_slider_scripts' );

    // Initialize Slider
?>
  <?php  function wptuts_slider_initialize() { ?>
        <script type="text/javascript" charset="utf-8">
            jQuery(window).load(function() {
                jQuery('.flexslider').flexslider({
                    animation: "fade",
                    direction: "horizontal",
                    slideshowSpeed: 700,
                    animationSpeed: 600
                });
            });
        </script>
    <?php }
    add_action( 'wp_head', 'wptuts_slider_initialize' );
?>

<?php
function wptuts_slider_template(){
//get all of the meta data from the list items

  $menu_name = 'slider';
  //get all of the menus
  $locations = get_nav_menu_locations();

  //Check to see if the menu in the location is empty
  if ( isset( $locations[ $menu_name ] ) ) {
    //get the actual menu object by the same name
  	$menu = wp_get_nav_menu_object( $locations[ $menu_name ] );
  	$menu_items = wp_get_nav_menu_items($menu);
  //  echo var_dump($menu_items);
  //Start the Slider ?>

  <div class="flexslider">
    <ul class="slides">
      <?php

    foreach( $menu_items as $slide ){
      //var_dump($slide);
      //echo $slide ->ID;

    //retrieve the id of the slider
      var_dump(get_post($slide ->ID));

//if the slider has a thumbnail then display it
      if ( has_post_thumbnail() )

      ?>
      <li>
<?php echo the_post_thumbnail() ?>
				</li>

<?php }?>
<?php }?>
<?php }?>