diff --git a/Cake/ORM/Entity.php b/Cake/ORM/Entity.php
index a324638197e..a7c94c819ad 100644
--- a/Cake/ORM/Entity.php
+++ b/Cake/ORM/Entity.php
@@ -352,12 +352,15 @@ public function jsonSerialize() {
  * stored in this entity, indexed by property name
  *
  * @param array $properties list of properties to be returned
+ * @param boolean $onlyDirty Return the requested property only if it is dirty
  * @return array
  */
-	public function extract(array $properties) {
+	public function extract(array $properties, $onlyDirty = false) {
 		$result = [];
 		foreach ($properties as $property) {
-			$result[$property] = $this->get($property);
+			if (!$onlyDirty || $this->dirty($property)) {
+				$result[$property] = $this->get($property);
+			}
 		}
 		return $result;
 	}
diff --git a/Cake/ORM/Table.php b/Cake/ORM/Table.php
index 7d60bc30f67..3aba0dfaeb2 100644
--- a/Cake/ORM/Table.php
+++ b/Cake/ORM/Table.php
@@ -738,7 +738,7 @@ public function exists(array $conditions) {
  * @return \Cake\ORM\Entity|boolean
  */
 	public function save(Entity $entity, array $options = []) {
-		$options = new \ArrayObject($options + ['atomic' => true]);
+		$options = new \ArrayObject($options + ['atomic' => true, 'fieldList' => []]);
 		if ($options['atomic']) {
 			$connection = $this->connection();
 			$success = $connection->transactional(function() use ($entity, $options) {
@@ -766,20 +766,10 @@ protected function _processSave($entity, $options) {
 			return $event->result;
 		}
 
-		$data = empty($options['fieldList']) ?
-			$entity->toArray() :
-			$entity->extract($options['fieldList']);
-
-		$schema = $this->schema();
-		$data = array_intersect_key($data, array_flip($schema->columns()));
+		$list = $options['fieldList'] ?: $this->schema()->columns();
+		$data = $entity->extract($list, true);
 		$keys = array_keys($data);
 
-		foreach ($keys as $i => $property) {
-			if (!$entity->dirty($property)) {
-				unset($keys[$i], $data[$property]);
-			}
-		}
-
 		$primary = $entity->extract((array)$this->primaryKey());
 		if ($primary && $entity->isNew() === null) {
 			$entity->isNew(!$this->exists($primary));
diff --git a/Cake/Test/TestCase/ORM/EntityTest.php b/Cake/Test/TestCase/ORM/EntityTest.php
index 3cb44ba55bd..126ca59d491 100644
--- a/Cake/Test/TestCase/ORM/EntityTest.php
+++ b/Cake/Test/TestCase/ORM/EntityTest.php
@@ -492,6 +492,24 @@ public function testDirtyChangingProperties() {
 		$this->assertTrue($entity->dirty('something'));
 	}
 
+/**
+ * Tests extract only dirty properties
+ *
+ * @return void
+ */
+	public function testExtractDirty() {
+		$entity = new \Cake\ORM\Entity([
+			'id' => 1,
+			'title' => 'Foo',
+			'author_id' => 3
+		]);
+		$entity->dirty('id', false);
+		$entity->dirty('title', false);
+		$expected = ['author_id' => 3];
+		$result = $entity->extract(['id', 'title', 'author_id'], true);
+		$this->assertEquals($expected, $result);
+	}
+
 /**
  * Tests the clean method
  *