You really have to scrutinize juice ingredients. According to Hyman, some fruit-only juices can be very high in sugar – even added sugars, which are one of the main toxins you want eliminate in the first place. On the flip side, juices made only of green vegetables are often super-dense and too tough to stomach, says Haas. Your best bet: Cocktails of kale, spinach, parsley, and barley grass, along with sweeter veggies such as carrots, celery, and cucumbers and fruits like apples for flavor. These foods are chockfull of essential vitamins and minerals that the body needs. They also contain some amino acids, Haas says, which are extra important while juicing since you're not getting them from meat and other protein sources.
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