Matching usermeta at registration to categories of content

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function convertInterestCategory() {

    $interest_categories = array(
        'interest_disaster',
        'interest_animals',
        'interest_women',
        'interest_seniors',
        'interest_hunger_health',
        'interest_education',
        'interest_environment',
        'interest_arts_culture',
        'interest_children_youth',
        'interest_other',
        'interest_mentoring',
        'interest_poverty_urban'
    );

    $current_user = wp_get_current_user();
    $user_values  = get_user_meta( $current_user->ID );

    foreach ( $interest_categories as $interest_category ) {
        if ( isset( $user_values[$interest_category][0] ) )
            echo $user_values[$interest_category][0];
    }
}