Fruit juice is one beverage that has seen a dramatic increase in consumer purchasing since the 1970s. While the beneficial effects of consuming diets rich in fruit and vegetables are well documented, the specific health effects of consuming fruit juice are less so. Further, the role of fruit juice in conditions such as obesity has also recently come under scrutiny, due to questions over how liquid calories affect subsequent energy intake. Limitations in the literature in this area include a lack of studies looking at different types of fruit juices and their effects on health, as well as studies that differentiate fruit juice from fruit and vegetable intake.

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