full.php

add_filter( 'the_content', 'show_diary_details' );
function show_diary_details( $content ) {
    $diary = '';

    if( has_category( 'workout' ) ) {
        $diary = '<table>
            <tr>
                <th>Activity</th>
                <th>Duration</th>
                <th>Distance</th>
                <th>Calories</th>
                <th>Link</th>
            </tr>
            <tr>
                <td>' . get_field( 'type' ) . '</td>
                <td>' . get_field( 'duration' ) . ' min</td>
                <td>' . get_field( 'distance' ) . ' km</td>
                <td>' . get_field( 'calories' ) . ' kcal</td>
                <td><a href="' . get_field( 'link' ) . '">link</a></td>
            </tr>
        </table>';
    }

    if( has_category( 'meal' ) ) {
        $diary = '<table>
            <tr>
                <th>Calories</th>
                <th>Fat</th>
                <th>Protein</th>
                <th>Carbohydrates</th>
                <th>Cholesterol</th>
            </tr>
            <tr>
                <td>' . get_field( 'calories' ) . ' kcal</td>
                <td>' . get_field( 'fat' ) . ' g</td>
                <td>' . get_field( 'protein' ) . ' g</td>
                <td>' . get_field( 'carbohydrates' ) . ' g</td>
                <td>' . get_field( 'cholesterol' ) . ' mg</td>
            </tr>
        </table>';
    }
    
    if( has_category( 'sleep' ) ) {
        $diary = '<table>
            <tr>
                <th>Calories</th>
                <th>Fat</th>
                <th>Protein</th>
                <th>Carbohydrates</th>
                <th>Cholesterol</th>
            </tr>
            <tr>
                <td>' . get_field( 'start' ) . '</td>
                <td>' . get_field( 'end' ) . '</td>
            </tr>
        </table>';
    }

    return $content . $diary;
}