The popularity of green smoothies, consisting of raw, leafy vegetables such as spinach, kale, celery, or broccoli began growing rapidly in the early 2000’s.
Kirk Perron, an avid cyclist and healthy-lifestyle advocate at Cal Poly, opens his first Jamba Juice store in San Luis Obispo, California — it's now the largest “smoothie store” chain in the world.
Thanks to the invention of the electric blender, health food stores on the West Coast began selling smoothies.
The actual term "smoothie" was in use in recipes and trademarks by the mid-1930s.
