Interesting article on juicing
I'm not familiar with this guy, and don't know his qualifications, but most of what he writes is based on common sense. Such as, "....the difference between medicine and poison is all in the dose." He points out that vegetable juice is concentrated nutrition, and if you overwhelm your body with nutrition it can cause problems.
This is what I did, and why I've had to stop juicing for awhile. I was drinking 16 oz. of vegetable juice every morning, loving it, and experiencing more energy in the afternoon than I had in years. But it caught up with me, and stomach problems made me stop.
According to this writer, a pint is way too much. In another article, he says greens should represent only 1/4 of our juice. Apparently I was overdoing the greens too.
He also talks about the amount of sugar in fruits, and vegetables as well.
Here's the article: Responsible Juicing