Is there any natural food that is blue?

While blue is a less common color in nature than other hues like green and red, there are actually a few examples of naturally blue foods:

Fruits:

* Blueberries: Arguably the most well-known blue food, blueberries get their color from anthocyanins, a type of pigment.

* Huckleberries: Similar to blueberries, these small, tart berries are also blue.

* Blue Corn: While not technically a fruit, blue corn is a variety of corn with a distinct blue hue.

Vegetables:

* Blue Potatoes: A variety of potato with blue flesh, due to the same anthocyanin pigment found in blueberries.

Other:

* Spirulina: A type of blue-green algae, spirulina is a popular superfood supplement.

* Butterfly Pea Flowers: These edible flowers create a vibrant blue tea when steeped in hot water.

Note: Some foods, like blue cheese, may appear blue, but their blue coloration is often due to a specific mold or added coloring, rather than natural pigments.