All whole foods are functional in the some respects since they supply at least some necessary nutrients, but specific foods stand out as rich suppliers of bioactive dietary components.
A functional food is one that claims to have a new purpose by combining two or more current ingredients. The phrase may also refer to features that have been purposefully bred into existing food plants, such as violet or gold potatoes with higher anthocyanin or carotenoid levels.
Whole foods, such as fruits and vegetables, are the most basic example of functional foods. Functional foods include foods that have been supplemented, enriched, or enhanced with nutrients, phytonutrients, or botanicals, as well as nutrition supplements.
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