If you can give orange-juice, or some other similar juice which agrees with them -- grape fruit, lemon, or tomato juice -- that will do more good then harm.
(you; can give; orange-juice, or some other similar juice) (some other similar juice which agrees with them; will do; more good; T:then)
you some other similar juice which agrees with them
can give will do
orange-juice, or some other similar juice
more good T:then