The fish, which has been considered beneficial in every way physically and mentally, with its nutritious ingredients, has come to the fore today with a striking research. Fish, which is recommended by health institutions to eat two servings each week, can cause one of the deadliest types of cancer, according to new research from Brown University.
According to a new study published by scientists in the journal Cancer Causes & Control, consuming two servings of fish each week as recommended increases the risk of skin cancer. The scope of the research proves how convincing the result is.
Approximately 500 thousand adults participated in the study:
Brown University conducted a study on 491,367 adults with an average age of 62 years. By completing a questionnaire, adults shared how often and what serving size they ate fried fish, non-fried fish, and tuna in the previous year.
After the answers were given, the scientists calculated the frequency of new melanoma cases developing in the last 15 years using data from cancer case records. The comparison also took into account factors such as weight, smoking and alcohol use, diet, family history of cancer, and UV radiation levels in local areas.
The comparison revealed that 5,034 people developed ‘malignant melanoma (malignant skin cancer)’ and 3,284 people developed stage 0 melanoma during the research process. These people consisted of people with higher fish consumption. It was also revealed that people who consumed an average of 14.2 grams of tuna per day had a 20% higher risk of malignant melanoma than those who consumed 0.3 grams of tuna per day.
When those who consumed 17.8 grams of unfried fish and 0.3 grams of fried fish per day were compared, an 18% higher risk of malignant melanoma and a 25% higher risk of stage 0 melanoma were found in the first group. On the other hand, no association was found between consumption of fried fish and skin cancer.
The research divided scientists into two:
Eunyoung Cho, the head of the research, shared that their study revealed some results that require further investigation. Cho explained that they suspect the biggest reason for the results obtained is harmful impurities such as doxins, arsenic and mercury in fish.
On the other hand, Dr. Duane Mellor shared that the impurities mentioned in Cho’s assumption are likely to affect more than skin cancer. Mellor shared that the study did not have a clear mechanism to prove that fish consumption could increase the risk of melanoma. Reminding that the nutritiveness of fish has been proven many times to date, Mellor shared that people should not be distracted from eating fish because of this study.
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