In the bowl of a slow cooker, whisk together 1/2 cup water, crushed tomatoes, lime juice, paprika, garlic powder, cumin, and dried oregano.
Pat pork loin dry and carefully add to the slow cooker. Turn to coat all sides. Cover and cook on low for 8-10 hours, until meat easily shreds.
Shred pork and serve with juices. Garnish with cilantro (optional).
Serving Size 4 oz
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.