These are juices pressed from the roots of small grass shoots that grow from berries and wheatgrass. It is the kind of juice that is highly nutritious. It is normal to find people consume only the pint-size of a shot glass.
Most nutritionists say wheatgrass juice has both cleansing and healing properties. Therefore, before you consume it, first consult your nutritionist and see if they recommend it for you. However, not all cold juice pressers can successfully extract juice from wheatgrass. You must also find the right model.