I have been telling people about the benefits of drinking green smoothies. I have let them taste them and tell them that even if they make no other changes in their lifestyle, after 30 days, they will feel a difference. This is called the 30-day green smoothie challenge.
I have converted at least 3 people in the last couple of month, and they have had great results. One has dropped weight and reduced his blood glucose numbers.
All you need is a blender--but a Vita-Mix works so much better. I've had mine for well over 11 years and it's still going strong. You can see my review and see all that this miracle super blender can do (like make soft serve ice cream and sorbet, soup, and more!).