Bring the water to a boil in a medium pot. Stir in Farro and reduce heat to medium. Cook until done, about 20 minutes.
While the Farro cooks, peel and dice the mango. Add to a large bowl. Then dice the red pepper, onion, jalapeño pepper (if using), kale and the cilantro. Add to the bowl. Stir in the cumin, salt, pepper and turmeric.
Once the farro is done cooking, drain in a colander and rinse with cold water. Add to the bowl with the mango.