Superfoods, what's your take?

Superfoods are nutrient dense foods that we eat or take as supplements. Do you use superfoods regularly in your diet? Are superfoods a new trend or are they just being hyped and have been around for a long time?

"Superfood is a term sometimes used to describe food with high phytonutrient content that some may believe confers 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. However, 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. 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.
The OED includes citations for superfood in the general sense of a food considered especially nutritious or otherwise beneficial to health and well-being dating from Protected content 1949, as well as more recent examples."