functional food 
noun
A food containing health-giving additives.Health and obesity symposiums will focus on tailoring food choices to improve health, nutraceuticals and functional foods, fats and oils, and food chemistry....
- Many so-called functional foods, health foods, and nutraceuticals have been entering into the mainstream US diet lately, with little or no regulation or testing.
- The increasing demand for safe, healthy, and minimally processed foods is creating an opportunity for seaweed products as functional foods, nutraceuticals, and alternative medicinal products.