Juice covers a lot -- virtually anything can be juiced if you're doing this yourself. Fruit juices contain a lot of sugar, but can also be powerful antioxidants, but vegetable juices can be very valuable. Wheatgrass juice is great. So this depends on what you mean by nutritional juices. Most important, avoid anything that's not organic. When you juice anything, you use a lot of it, and that enhances the amount of harmful chemicals that exist on whatever you're juicing.