Increased consumption of unfried fish such as tuna is associated with an increased risk of melanoma. This is indicated by an extensive study by scientists from the USA. The study was conducted among adults in the United States and was published in the journal Cancer Causes and Control on June 9, 2022.
In the study, the researchers analyzed data from 491,367 people identified by the NIH-AARP National Cancer Institute Diet and Health Study. Participants were on average 62 years old and stated for the study how often they eat fried fish, unfried fish and tuna. Portion sizes were also recorded.
An extensive study shows a potential link between fish consumption and skin cancer
“This study is important because it is very comprehensive and forward-looking. Fish consumption has been studied before cancer,” said Eunyoung Cho, a professor of dermatology and epidemiology at Brown University. fish and skin cancer risk were inconsistent. Our results have shown a correlation. Now it has to be further investigated, “she continued.
The researchers found that people who ate an average of 42.8 grams of fish a day had a 22 percent higher risk of developing melanoma. The data were compared with people who ate the lowest daily amount of fish, averaging around 3.2 g. People who ate an average of 42.8 g of fish a day were also 28 percent more likely to develop abnormal cells in fish. which develop an outer layer of skin, the so-called “in situ melanoma”.
Study participants who ate an average of 14.2 grams of tuna per day had a 20 percent higher risk of developing “malignant melanoma” (black skin cancer) and a 17 percent higher risk of in situ melanoma compared to people who did not consume an average of 0.3 grams of tuna per day.
White people are at greater risk of skin cancer
Melanoma is the fifth most common cancer in the United States. According to the American Cancer Society, whites have a one in 38 chance of developing them during their lifetime. The risk is one in 1,000 in blacks and one in 167 in Hispanics. Although melanoma accounts for only a small proportion of all skin cancers, it is the leading cause of skin cancer deaths, according to the American Cancer Society’s Trusted Source (ACS).