1 Combined serving of veggies & fruit (1 Can has about 2.5 oz. vegetable juice and 1.5 oz. fruit juice. 1 Serving of vegetables or fruit = 4 oz. (1/2 cup). Dietary guidelines recommend 2-1/2 cups of a variety of vegetables and 2 cups of fruit per day for a 2,000 calorie diet). Caffeine Level: V8 +Energy 80 mg.