What makes a “superfood”?
"Superfood is a term sometimes used to describe food with high phytonutrient content that may confer health benefits as a result. For example, blueberries are often considered a superfood (or superfruit) because they contain significant amounts of antioxidants, anthocyanins, vitamin C, manganese, and dietary fiber.[1]
The term is not in common currency amongst dieticians and nutritional scientists, many of whom dispute the claims made that consuming particular foodstuffs can have a health benefit.[2] There is no legal definition of the term and it has been alleged that this has led to it being over-used as a marketing tool.[3]"