We've been juicing for awhile. My husband first started juicing on a recommendation from his naturopath when we were still trying to get his health in order. The original recipe was pretty simple: for one juice - half bunch greens, half a green apple, one carrot, 2 stalks of celery, a half inch of ginger and a squeeze of lemon. Since then the recipe has change and grown and morphed (see below). I have experimented with various greens and veggies (kale, collards, broccoli, beets and beet greens, dandilion greens, mustard greens, chard, bok choy, spinach, watercress, parsely, mint, cucumber) and made some discoveries along the way.
First, not all greens are created equal. Many are high in oxalates (or oxilic acid). Oxalates are what cause that gritty feeling on you teeth after eating spinach or chard. So what is the problem with oxalates? While greens high in oxalates might be loaded with iron and calcium, they aren't very accessible to the body. The oxalates bind with minerals forming crystals that prevent their absorption. Not only are you not getting the iron and calcium, but these crystals pass through your kidneys and, in some people, may cause kidney stones.
While I believe all this is true, when I look up foods high in oxalates, the list of food is so huge that it would be impossible to avoid them completely. For a full list check out this website
http://www.ohf.org/docs/Oxalate2008.pdf.
This begs the question, can something so prevalent in our food really be so bad for you? Yes, if you have a history of kidney stones or some other medical condition that requires you to avoid oxalates. But for the rest of us, as much as you might want an excuse to give up your greens, you can't write them off so fast. The risk of kidney stones is far outweighed by the benefits of greens. They are packed with nutrients - fiber, folic acid, vitamin C, phytochemicals, antioxidants, iron, calcium, vitamin K, magnesium, potassium, the list goes on. There are also numerous articles and studies citing the benefits of leafy greens as reducing the risk of heart disease and cancer, for bone health, diabetes, weight loss, and again on and on. So eat your greens ... or in this case, drink them.
While it is important to eat raw and lightly cooked greens, the main benefits of juicing are that it is easier for your body to absorb more of the nutrient and that you can get all the nutrients without all the bulk. I don't know anyone who regularly, or even occasionally, sits down and eats an entire bunch of raw kale. This is the kind of thing you do on a dare. So I dare you to eat one bunch of raw kale! With juicing you can easily drink one or even two bunches of greens.
To start with, what kind of juicer should you use? I use the
omega juicer,

but any of the masticating juicers are good. Yes, I did say masticating. Not to be confused with other similar sounding words. When we we're buying our juicer, we called up several places asking if they carried masticating juicers and we got a lot of funny responses. They are also called single gear juice extractors.
So which greens to juice? Kale, chard and parsley are our favorites. Their taste isn't too strong. Chard is mild and sweet, parsley tastes like parsley and kale is a little bitter but easily masked by the carrot and apple and is lower in oxalates than both chard and parsley. While parsley is great for juicing - offering lots of iron and a pleasant taste - it makes this weird dark green sludge. It took me a while to figure out it was the parsley. This sludge is such a dark vibrant green that it has to be good for you, but the slimy sludgy texture is a challenge to get down. I was straining it out but recently discovered that if it is pressed through a strainer it reintegrates with the juice ... although the juice is definitely thicker.
Other greens aren't so easily disguised by apple and carrot. One day at the farmer's market a seller recommended watercress for juicing. I had read it was very high in iron and calcium and low in oxalates, so I bought two bunches. The next day I was very excited to try my juice. I took a big sip, swirled (I'll talk more about swirling later) it around my mouth and nearly gagged! Watercress. It sounds so benign, so refreshing. It is a very deceiving green. It has a bitter, spicy flavor. Not so different from mustard greens, but at least with mustard greens you know what you're getting into. Beet greens are another not so tasty green, also very high in oxalates. Beets and beet greens are great for cleansing, but if you put too much in the juice, your tongue and throat go numb. The first time this happened to me, I thought that I poisoned myself with oxalates. Enough rambling and onto juicing...
Our current recipe (makes 2 servings):
1 bunch greens (you can also mix two or three different greens - I often mix kale and chard )
1/2 bunch parsley
1green apple
1/2 lemon
1 inch of ginger
3 carrots
1/2 large cucumber
1/2 beet
When you first start juicing, you want to keep it simple. Add extra apple, carrots and lemon if the greens are too overpowering for you. Only 1/4th of the juice should be from leafy greens. Greens have cleansing properties and can make the newbie juicer nauseated. Swirling each sip in your mouth is the same as chewing. It gets all the enzymes in your mouth working and helps with digestion and absorption.
Enjoy, my daughter does :)