custom notification for user profile changes

I have followed the instructions here:
https://www.primothemes.com/forums/viewtopic.php?f=4&t=2193&sid=dfef67f44c811ad0a6cc3d4160969590&start=25

and here:
https://www.s2member.com/forums/topic/user-profile-change-admin-notification/

using this code:

add_action ('ws_plugin__s2member_during_configure_user_registration', 's2_set_default_eot_time');
function s2_set_default_eot_time($vars = array()) {
    if (!is_admin() && $vars['processed'] === 'yes') {
        update_user_option($vars['user_id'], 's2member_auto_eot_time', strtotime(date('Y') . '-12-31'));
    }
}

add_action ('ws_plugin__s2member_during_handle_profile_modifications', 'profile_change_notify');
add_action ('ws_plugin__s2member_during_handle_profile_modifications_4bp', 'profile_change_notify');
function profile_change_notify ($vars = array ())
    {
        $user = new WP_User ($vars['user_id']);
        wp_mail ('myemail@me.com', 'Subject ( ' . $user->user_login . ' just updated the Profile )', '
		User Name: ' . $user->user_login . '
		Email: ' . $user->user_email . '
		First Name: ' . $user->first_name . '
		Last Name: ' . $user->last_name . '
		Street Address: ' . $user->wp_s2member_custom_fields['street_address'] . '
		Ingredients: ' . $user->wp_s2member_custom_fields["ingredients"] . '
		Day of Week 1: ' . $user->wp_s2member_custom_fields["day_of_week_1"] . '
		Day of Week 2: ' . $user->wp_s2member_custom_fields["day_of_week_2"] . '
		Day of Week 3: ' . $user->wp_s2member_custom_fields["day_of_week_3"]');
    }

wrapped in php tags inside of a plugin file. When I receive the email, all fields are good except for the ingredients field, which just comes back as “array” How can I display the contents of that array in the email rather than just the text “array”? The field is a check boxes, multi option field if that helps.

https://www.ads-software.com/plugins/s2member/