If you've never tried an acai bowl, or tucked into a black rice risotto, then 2017 could be a year of new experiences.

According to experts from Whole Foods, who examined consumer behaviour globally across 465 stores, our plates are going to look very colourful this year, with purple foods in particular expected to fly off the shelves.

In an online statement, the health food company described the phenomenon as a "fast growing trend." They said: "Richly colored purple foods are popping up everywhere: purple cauliflower, black rice, purple asparagus, elderberries, acai, purple sweet potatoes, purple corn and cereal.

"The power of purple goes beyond the vibrant color and often indicates nutrient density and antioxidants."