People are always searching for the next health food fad. From 1500 B.C. to present day, the world has seen a parade of superstars that promise to go above and beyond regular diet foods. While garlic and cabbage relied on word-of-mouth and traditional advertising, today’s age of social media has made it easier than ever for a food to rise to fame. Kale, which surged in popularity in 2011, has over 1,376,183 posts on Instagram marked with #kale. That’s a lot of pictures of a leafy vegetable.

What makes kale a superfood celebrity, while doppelgängers arugula and romaine are left in the dust? We decided to investigate. From grapefruit to Greek yogurt, check out these health food fads that have had their 15 minutes (or perhaps longer) of fame.