Should I turn off the lights when eating oranges in the future? ! Research: The "phototoxicity" of citrus increases the risk of skin cancer

Citrus products are one of the most common fruits, mainly oranges, oranges, grapefruit, lemons and so on. But you know what? Citrus products are rich in "furan coumarin", which is phototoxic and generally does not cause harm to human body, but it will react chemically under the action of ultraviolet rays in the sun and produce toxicity.

Studies have shown that furocoumarin can interact with ultraviolet rays and promote the proliferation of melanoma cells. In blood, it will also be distributed in many types of tissues and promote the damage of DNA replication. Previously, the results of two large-scale studies also showed that there was a potential correlation between citrus intake and skin cancer risk.

Study of 520,000 people in Europe: Eating more oranges increases the risk of skin cancer. Recently, researchers from the University of Thackeray in France brought the results of a European cancer and nutrition survey involving 520,000 participants to study the potential relationship between citrus intake and skin cancer risk. The related results were published in the European Journal of Epidemiology on July 24th.

Researchers recruited 52 1448 participants aged between 25 and 70 from 10 European countries. After excluding invalid data, they identified 8448 cases of skin cancer among 270 1 12 participants.

The results show that a large intake of citrus fruits will increase the risk of skin cancer, especially melanoma. Compared with the average daily citrus intake 10.8g, when the average daily citrus intake is 2 17.5g, the risks of basal cell carcinoma and squamous cell carcinoma are higher 1 1% and 23% respectively.

The researchers found that participants with higher citrus intake were usually younger, more likely to be women, more educated and consumed more total energy, vegetables, non-citrus fruits and non-citrus juices than those with lower citrus intake.

That is to say, after eating too many citrus fruits, you should avoid ultraviolet radiation, including sun exposure and fluorescent lamps, especially those whose skin is sensitive and vulnerable to ultraviolet radiation, and you can take necessary sun protection measures.

Dermatologist analysis: normal consumers don't have to worry about research. Cai, director of the dermatology department of National Taiwan University Hospital, analyzed that people should not panic too much and never eat citrus fruits. "In fact, this photosensitive substance is mainly on the epidermis, such as lemon peel, bergamot root or celery root. 」

After all, citrus fruits also have antioxidant effects and are an important source of vitamin C. Proper intake is more beneficial. He explained that if you just eat a normal diet, you don't have to worry about overeating.

Sun protection is something everyone should do, especially in summer, when the sun is strong. Ultraviolet rays are a great threat to skin health, so whether you eat citrus or not, you should do it.