Questions to the folks that juice

I read the posts on juicing, and supplements and all, and I am wondering....what do you eat??? I am curious. We all need proteins, fats, carbs in our diet, so that it functions well. Do you follow a vegan diet?

Juicing takes alot of veggies. Can you juice in advance for the whole day? How often do you have to shop for the ingredients?

I may want to start doing some things for Robert, but it all seems very confusing. So much info really don't know where to start.

Thanks all!

Angela