Freshly extracted juice contains all of the live elements required for good health.....a living food.
However if you go for the canned or bottled variety then this is mostly from concentrate, invariably pasteurized and is extremely acidic and harmful to the body.
You are a living person with needs foods that are "alive". If you eat "live-foods" then this is the ideal food as found in Nature to feed your living cells.
You do not have a juicer, but I would say what price health? Go and buy a good one such as Greenstar but not the Centrifugal type juicer as this heats/oxygenates and damages the juice.
Your body is your temple, so I would respectfully suggestb that you treat it like one.
"The first wealth is health"...............Emerson.