Researchers saw that compounds in grapefruit can make the skin more sensitive to sunlight. People who enjoy a glass of orange juice or eat fresh grapefruit in the morning may have an increased risk of skin cancer melanoma, the most rare types of cancer but the most deadly.
That's the finding from a study of more than 100,000 adults in the United States for 25 years. The researchers found that those who regularly consume grapefruit or grapefruit juice has a higher risk of developing melanoma, compared with those who avoid such foods.
However, experts stressed the findings quickly and reported online in the Journal of Clinical Oncology, found not proven oranges help cause cancer.
It does make sense, however, because there are certain compounds in grapefruit that explains the association, said senior researcher Dr. Abrar Qureshi, head of dermatology at Brown University and a dermatologist at Rhode Island Hospital.
Grapefruit contains a substance "photoactive" is psoralens and furocoumarins particular, which is known to make the skin more sensitive to sunlight when applied to the skin, said Qureshi.
However, despite the potential to make the most of the citrus susceptible to sunlight, does not mean to avoid grapefruit juice. "However, citrus will not hurt you without excessive sun exposure," said Qureshi.
So, the message remains the same, protect skin from the sun often exposed by securing themselves in the shade, use sunscreen and wear a hat.
The same suggestion was submitted by Marianne Berwick, a skin cancer researcher who wrote an editorial published by previous studies.
"I do not think the general public should make changes based on this study," said Berwick a professor of dermatology at the University of New Mexico in Albuquerque. "You still have to eat a variety of fruits and vegetables in your diet."
For this study, researchers analyzed data from two long-term studies conducted in the United States. Every two years, participants will answer a detailed survey about their health and lifestyle.
For about 25 years, more than 1,800 people found the increased risk of skin cancer melanoma, which regularly consume grapefruit juice or eat grapefruit. This is real, researchers have found, even when several other factors are included, including those who reported frequent exposure to sunlight and has a history of sunburn.
Those who consumed orange juice at least once a day, about 25 percent will increase the risk of melanoma skin cancer than those who consumed orange juice a few times a week. Likewise, those who consumed grapefruit at least three times a week have an increased melanoma by up to 41 percent compared to those who do not eat at all.
However, on the other hand, the researchers also found no link between the risk of melanoma with orange juice or grapefruit. Berwick said, there was no full explanation of it. And in general, these findings need to be tested on another group, to ascertain whether there is a real connection between orange with melanoma cancer.
Qureshi added that there are some substances "photoactive" on a variety of fruit and citrus cause seems not all the same risks, especially the risk of melanoma skin cancer.
That's the finding from a study of more than 100,000 adults in the United States for 25 years. The researchers found that those who regularly consume grapefruit or grapefruit juice has a higher risk of developing melanoma, compared with those who avoid such foods.
However, experts stressed the findings quickly and reported online in the Journal of Clinical Oncology, found not proven oranges help cause cancer.
It does make sense, however, because there are certain compounds in grapefruit that explains the association, said senior researcher Dr. Abrar Qureshi, head of dermatology at Brown University and a dermatologist at Rhode Island Hospital.
Grapefruit contains a substance "photoactive" is psoralens and furocoumarins particular, which is known to make the skin more sensitive to sunlight when applied to the skin, said Qureshi.
However, despite the potential to make the most of the citrus susceptible to sunlight, does not mean to avoid grapefruit juice. "However, citrus will not hurt you without excessive sun exposure," said Qureshi.
So, the message remains the same, protect skin from the sun often exposed by securing themselves in the shade, use sunscreen and wear a hat.
The same suggestion was submitted by Marianne Berwick, a skin cancer researcher who wrote an editorial published by previous studies.
"I do not think the general public should make changes based on this study," said Berwick a professor of dermatology at the University of New Mexico in Albuquerque. "You still have to eat a variety of fruits and vegetables in your diet."
For this study, researchers analyzed data from two long-term studies conducted in the United States. Every two years, participants will answer a detailed survey about their health and lifestyle.
For about 25 years, more than 1,800 people found the increased risk of skin cancer melanoma, which regularly consume grapefruit juice or eat grapefruit. This is real, researchers have found, even when several other factors are included, including those who reported frequent exposure to sunlight and has a history of sunburn.
Those who consumed orange juice at least once a day, about 25 percent will increase the risk of melanoma skin cancer than those who consumed orange juice a few times a week. Likewise, those who consumed grapefruit at least three times a week have an increased melanoma by up to 41 percent compared to those who do not eat at all.
However, on the other hand, the researchers also found no link between the risk of melanoma with orange juice or grapefruit. Berwick said, there was no full explanation of it. And in general, these findings need to be tested on another group, to ascertain whether there is a real connection between orange with melanoma cancer.
Qureshi added that there are some substances "photoactive" on a variety of fruit and citrus cause seems not all the same risks, especially the risk of melanoma skin cancer.
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