Unless you are doing a u003ca href=u0022https://goop.com/ca-en/wellness/detox/the-best-juice-cleanses/u0022 target=u0022_blanku0022 rel=u0022noreferrer noopeneru0022u003ejuice cleanseu003c/au003e, it is recommended to have 1-2 cups (250-500ml) of juice per day.