The name of Blueberry comes from the literal translation of English blueberry, which means blue berry. Actually, there is a beautiful story. Americans who sailed to North America in their early years suffered from terrible septicemia because of long-term lack of fresh fruits and vegetables. The local Indians gave them a blueberry, which was called "carambola" because of its star-shaped pedicel at the bottom of the fruit, and cured their disease. Americans think this is a gift from God, so they call it blueberry.

blueberry

There is also a wonderful legend about blueberries in China. Blueberry, the dragon girl in Tianchi, Changbai Mountain, died with the monster for the peace of the people. After that, purple-black fruits grew around Changbai Mountain. Because the Dragon King missed his daughter Lacrimosa, he became blurred vision and suffered from eye diseases. The dragon lady said in her dream, "If you miss me, just eat a few purple and black fruits every day." After that, the dragon king ate a few when he missed the dragon lady, and his eyes recovered a few days later. Therefore, this purple-black fruit is named blueberry. People at the foot of the mountain will also pick blueberries to eat on the mountain, which is called the protector of eyes. It can protect eyesight, prevent eye diseases and relieve fatigue.

In China, blueberries are mainly distributed in Liaoning, Heilongjiang, Jilin and other regions, and there are many wild blueberry species resources such as Vaccinium uliginosum (commonly known as Vaccinium uliginosum, Vaccinium uliginosum). The average weight of blueberry fruit is 0.5-2.5g, and the maximum weight is 5g. The fruit is colorful and pleasing to the eye, with a blue appearance and a layer of white fruit powder on the surface. The flesh is delicate and green. The edible rate of blueberry seeds is very small, which is 100%. Light and fragrant, sweet and sour, it is most suitable for fresh food or as an ornament on dessert. It can also be processed into blueberry sauce.

blueberry

So why do you say eating blueberries can protect your eyes?

This should start with the rich nutrients in blueberries: every 100g blueberries contain the following nutrients: carbohydrate 14.49 (g), protein 0.74 (g), lipid 0.33 (g), cellulose 2.4 (g), anthocyanin 255 (mg) and nicotinic acid 0.4/kloc. Folic acid 6 (micrograms), vitamin B6 0.052 (milligrams), vitamin E 0.57 (milligrams), vitamin K 19.3 (micrograms), saturated fatty acid 0.028 (grams), monounsaturated fatty acid 0.047 (grams), polyunsaturated fatty acid 0. 146 (grams). Iron 0.28 (mg), magnesium 6 (mg), phosphorus 12 (mg), potassium 77 (mg), zinc 0. 16 (mg), copper 0.057 (mg), manganese 0.336 (mg) and heat 57 (kcal).

blueberry

1, every100g of blueberry contains 255 mg of anthocyanin, which has great effect on protecting eyesight.

Anthocyanins can not only effectively prevent protein oxidation and lens opacity, but also prevent cataracts. Anthocyanins can also activate and promote the synthesis of rhodopsin on retina, thus improving people's visual acuity and vision; Anthocyanins can protect vision by inhibiting the apoptosis of photoreceptor cells damaged by photochemical damage of retina. Anthocyanins can protect retina from light-induced retinopathy through preventive neuroprotection.

2. Every 100g blueberry contains 32 micrograms of carotene, which plays a great role in protecting eyesight.

Carotene is a photosensitive substance in visual cells, which can be converted into vitamin A in human body and can be used to treat night blindness, dry eye and epithelial keratosis. Radicin may be able to absorb harmful rays from sunlight and prevent the retina from being damaged by sunlight.

Blueberry cake

3. Every100g of blueberry contains 80 micrograms of lutein, which plays a great role in protecting eyesight.

Ultraviolet and blue light in the sun will produce a large number of free radicals after entering the eyes, which may lead to the degradation of the macular area of the eyes and lead to diseases such as cataracts. Lutein in macular area has strong antioxidant capacity, which can help filter blue light and avoid the damage of blue light to eyes. Lutein can prevent macular degeneration and retinitis pigmentosa; Reduce the occurrence of drusen on glass membrane and prevent AMD (age-related macular degeneration). Lutein can quickly relieve asthenopia, improve blurred vision, dry eyes, swollen eyes, eye pain, photophobia and other symptoms.

4. Other minerals contained in blueberries are also nutrients needed by eyes.

Nutrients such as vitamin B, vitamin C and vitamin E also have protective effects on eyes; Trace elements such as calcium are closely related to muscle flexibility, which can help to mobilize muscles around the eyes and control actions such as blinking. Zinc is also an essential nutrient for vision formation, and the zinc content in eyes is extremely high.

It can be said that all the nutrients in blueberry are needed by the eyes, but they have an important impact on vision, such as anthocyanins, carotene, lutein and so on. Blueberries and other nutrients are high, so eating blueberries is good for your eyes.