Metabox not saving values

I have a problem. My fields are showing in the meta box, but saving does not work: // Create the metabox and fields function food_meta_box_markup($object) { wp_nonce_field(basename(__FILE__), “meta-box-nonce”); ?> <div> <label for=”np-calories” class=”np-label”><?php _e( ‘Energy (kcal)’, ‘nutriplus’ ) ?></label> <input name=”np_calories” type=”number” class=”np-field” value=”<?php echo get_post_meta($object->ID, “np_calories”, true); ?>”> </div> <?php } function add_food_meta_box() {…