Kale only juice fast

[RawFoodGuy22]

Is this safe? Could you get too many vitamins that could get you to a toxic level?

Thank you,

[Living Food]

Vitamins, no. But you could end up with too high levels of toxic alkaloids present in kale, which are perfectly safe at normal levels but build up in your body if you consume massive quantities of any one vegetable.

[snoops]

and ummm, you dont get very much juice from kale!! Like 1/8 cup maybe per bunch.

[HeatherAnne]

I juiced exclusively spinach for days straight a couple years back and got really sick. I was told it might have been from the oxalic acid which is also present in kale, or from the alkaloids (as above poster mentioned). Victoria Botenko, in her book Green Smoothie Revolution, talks about the importance of rotating greens due to these factors.