Juicing is only good for the short term from what I've read, as a way to jump start into another weight loss program or to do a juice fast maybe once or twice a week to give your digestive system a break.
Smoothies would be a better, long-term choice, but don't believe that just because you have a smoothie a day you will lose weight. You still need to take into account the calories consumed. But, unlike other choices you might make for your meal, you're more likely to get all your fruits and veggies for the day into your diet, all your nutrients, and a healthy well-rounded meal that should curb your hunger if you add the right ingredients.
When I have a smoothie, I eat it "for breakfast" but it takes me until almost noon to finish it! So it actually turns into lunch, too. But it's not the end-all be-all of my weight loss "program."
Started Jan. 2013 | Mini Goal 1: Onederland - Reached 5/20/14| Mini Goal 2: 179 (no longer obese) - Reached 2/13/15 | Mini Goal 3: 164 (15 pounds to goal) | Thank you, 5:2 and Intermittent Fasting!