I have been "juicing" (using a conventional machine) for a year now. Kale, limes, grapes, apples, oranges, carrots, and ginger root, in different combinations. At almost 60, and after having had a terrible bout with bronchitis and asthma, my blood oxygenation has improved dramatically, my cholesterol is under 150, and I have more energy than I have in years. The asthma remains but is far diminished. I also lost 25 lbs and have kept it off. I think it works.