The Wolfson Report states the following; see last line:
The current, generally accepted applications to terminal illness or persistent vegetative state define artificial feeding as artificial life support that may be withheld or withdrawn. In 1989, the Florida Legislature permitted the withdrawal of artificial nutrition and hydration under very specific circumstances. In 1999, following extensive bipartisan efforts, life-prolonging procedures were redefined as "any medical procedure, treatment, or intervention, including artificially provided sustenance and hydration, which sustains, restores, or supplants a spontaneous vital function." It is noteworthy that the general principle of artificial nutrition as artificial life support that may be removed in terminal and even vegetative state conditions is reflected in nearly all state's laws and within the guidelines of end of life care enunciated by the American Conference of Catholic Bishops and other religious denominations.
And Wolfson is an authority on Catholic theology?
Don't know if I'd rely on that one, if I were you!