Rabbits should only be given juice when they are not eating or drinking enough due to illness, and it should be given diluted with water -- 1/3 juice, 2/3 water. V8 juice is very high in salt and sugar. In an 8-oz serving there is 480 mg of sodium and 8 g of sugar. There is a lot of calcium too. Too much calcium can cause urinary tract problems and too much sugar can cause GI problems. Rabbits can become addicted to sugary foods and not want to eat what they should eat to stay healthy... Like lots of hay. V8 also has MSG as "natural flavorings".
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