I'd prefer to do all my juicing 1 time per day after work. This means some of my juice may be up to 24 hours old when drank.

So oxidation occurs over time that reduces the nutrient content of the juice, but to what extend? Over 24 hours: is it 50%? If it's 10%, then couldn't we just drink "a little more"? If it's 1%, couldn't we consider that negligible?

To say simply say there's nutrient loss over time is too vague a piece of information. Any studies or data on this?