The first one: blueberry, of course we are familiar with it.

The second kind: iris, also known as butterfly bean curd.

It can be made into various delicacies, such as Thai butterfly scented tea, butterfly basket rice, and Japanese iris pudding.

Third: Salzburg fish, which is a long snake-toothed single-line fish with a cool blue color. The reason may be that serum contains some bile pigments, and the specific mechanism is still unclear. But it can also be eaten.

The fourth kind: another kind of fish, a tropical marine fish called "Tsing Yi", can be tasted in Sanya.

The fifth kind: blue crab.

Sixth: black wolfberry, the color of the bubble is amazing.

The blue color of fruit comes from high content of anthocyanins. Anthocyanin is a soluble pigment with colors ranging from blue to red. Pharmacological studies have found that anthocyanins have many pharmacological activities, such as promoting rhodopsin synthesis, improving circulation, anti-ulcer and anti-inflammation, and can obviously improve eye fatigue.

You must know the "five-color regimen" in autumn.