The concept of “superfoods” can be traced back to the start of the 20th century, the term recently has become somewhat of a buzzword for better health.

However, with no real definition or criteria to determine what exactly superfoods are, they have caused quite a bit of confusion for consumers. The term is also often used by the food industry to market processed “health foods,” meal plans created to promote extreme weight loss and detox diets.

Several sources have tried to set a more specific definition for superfoods. Oxford Dictionary, for example, defines a superfood as “a food considered especially nutritious or otherwise beneficial to health and well-being.”

Meanwhile, according to Merrian-Webster, the term means “a food (such as salmon, broccoli, or blueberries) that is rich in compounds (such as antioxidants, fiber, or fatty acids) considered beneficial to a person’s health.”