In all the discussion of the Schiavo case, one court order has gotten lost in the shuffle: the court not only ordered the removal of Terri's feeding tube, it also forbade any food or water by mouth.
Here's a link to the actual court document:
At least one former nurse who took care of Terri testified under oath that she was able to give Terri some nutrition by mouth. The Schindlers wanted Terri to have therapy to learn how to swallow, which was at least a possibility. But the husband Michael consistently denied Terri this therapy.