The term only exists for financial reasons. Marketers know that people put their faith in foods that are – or at least say they are – organic, all-natural, fresh, wholegrain, country, golden, and a host of other qualities. A superfood is one that is supposedly more nutritious than other foods and therefore healthier.
This has no scientific basis whatsoever. There is no standardised definition of a superfood or special food group for them. And whilst the food itself might be healthy in its most natural state, the term superfood does not cover modification or the processing of it to make it more palatable (and therefore generally less beneficial to one’s health).