Do you eat a lot of fish?May increase risk of melanoma

Thursday, June 9, 2022 (HealthDay News)-Added fish To your diet to have a healthy diet, but now new research offers some bad news: fish lovers may have a slightly increased risk melanoma..

Researchers tracked more than 490,000 older Americans, with the 20% with the highest intake being about 4 minutes at risk of developing the disease in 15 years compared to the 20% with the lowest consumption of fish. I found it to be one high.

Still, experts emphasized that the findings show only correlations and that fish and shellfish responsibilities cannot be blamed head-on.

The oncology nutritionist who was not involved in the study emphasized the “big picture.”

In general, fish are healthy protein Rich in sauces, often anti-inflammatory agents Omega 3 fatty acidAmy Bragganini of the Mercy Health Lacks Cancer Center in Grand Rapids, Michigan, said.

Because of its benefits — including links to better ones heart When brain Health — Experts generally recommend that people strive to eat 2 ounces of fish per week.

She said fish could be a “good alternative” for those trying to limit lean and processed meats. colon And rectal cancer.

So why are fish linked to? melanomaDiseases most closely associated with risk factors such as sunburn and sunburn Family history??

Principal researcher Cho Eun-young said it was unclear. However, one hypothesis is that it is not a fish and that contaminants such as mercury and PCBs may be present at relatively high levels in some fish.

Past studies are linked Mercury Cho, an associate professor at the Warren Alpert Medical School at Brown University in Providence, Rhode Island, describes exposure to an increased risk of melanoma and other skin cancers.

But she said that the theory of pollutants is exactly that. “This is the first study to show this relevance,” Cho said. “Further research is needed to reproduce these findings before making dietary recommendations.”

Survey results published in the journal on June 9 Causes and control of cancer, Based on 491,000 Americans aged 50-71 years followed for 15 years. First, they answered a questionnaire about diet, exercise, smoking and drinking habits.

During the study, more than 5,000 participants were diagnosed with malignant melanoma, and about 3,300 developed melanoma on the spot. “Precancerous” melanoma cells are located in the uppermost layer of the skin, but do not penetrate deeper layers.

Cho’s team found that those with the highest fish intake had a 22% higher risk of malignant melanoma and a 28% higher risk of melanoma than those with the lowest fish intake. Did. The top group usually brought down about 43 grams of fish per day.

These higher risks were held when researchers described other lifestyle habits, races, levels of education, and where people lived.

However, the study lacked details about people’s personal sun habits, said Dr. William Dahat, director of the American Cancer Society. It’s not clear if fish lovers are likely to have a “beach house” or spend time outdoors, he said.

Dafoot, who was not involved in the research, called it “interesting” and it is worth digging deeper.

“But don’t tell people not to eat fish because of the risk of melanoma,” he said.

Dahoud also pointed out a mysterious discovery. Those who reported eating more unfried fish and canned tuna reported an increased risk of malignant melanoma. However, those who ate a lot of fried fish actually had a reduced risk.

Both Cho and Bragagnini agreed that it was difficult to explain the findings. Cho speculated that the type of fish could be important. She said future studies could determine if certain fish varieties were at high risk for melanoma.

For now, Braganini has recommended focusing on the overall diet, including eating plenty of plant-based foods such as vegetables, fruits, beans, nuts, and fiber-rich grains. For fish, I advised to bake or steam rather than fried foods that can deplete “good” fat.

For malignant melanoma, he said the main precautions are the same. That is, limit exposure to UV light from the sun and tanning beds and check the skin for new growth and changes in existing moles.

For more information

The American Cancer Society advises on diet and lifestyle.