1.   They had expected the tomato juice to provide more, because it had been heated.

2.   Turkey can easily turn dry, but after the kale simmers until tender its juices provide that little bit of moisture.

3.   Under heat, the starchy-sweet surface juices provide a lightly abraded surface to which flavors cling admirably.

4.   To further their theory, the researchers tested grape juice in a group of participants, confirming that grape juice provided the same beneficial effect.