Eating a "healthy" food frequently will double your risk of cancer

For healthy people and cancer patients, careful food intake is essential, because evidence shows that what we eat can significantly change our risk and disease progression

Salmon as a food source is considered to be very beneficial to health because it is an excellent omega-3 fatty acid, both wild-caught and farm-raised salmon

However, when one fish is caught in open water and the other fish is raised in a confined space, this may have an impact on health

According to a large study published by Harvard Health in 2004, the concentration of PCBs in farm-raised salmon is approximately eight times the concentration of PCBs in wild salmon 

Polychlorinated Biphenyls (PCBs) are man-made chlorinated industrial chemicals

For decades, PCBs have been banned for commercial use, but trace amounts of PCBs can still be found in the environment.

These chemicals were previously released into the environment from hazardous waste sites

Scientists first warned that regular consumption of farmed salmon may increase the risk of cancer after multiple cases of contamination have been detected.

Salmon raised on fish farms in the UK is particularly contaminated with carcinogenic chemicals

The results of the study published in the journal Science indicate that cheap farmed salmon sold in supermarkets may do more harm than good to your body

The researchers said: “The risk analysis shows that eating farmed Atlantic salmon may bring health risks and reduce the beneficial effects of eating fish

They warn that eating farmed salmon more than once a month is enough to increase the risk of disease

In another paper published in "Environmental Research", the author explained: "The biological and toxic effects of PCBs and their metabolites are partly due to their ability to interact with a variety of cell and nuclear receptors, thereby changing Signal pathways and gene transcription

To determine the relationship between this process and cancer risk, the research team conducted a hospital-based case-control pilot study on 58 prostate cancer patients and 99 controls

The study added: "In a multivariate analysis, men with the highest concentrations of moderately chlorinated PCBs were more than twice as likely to develop prostate cancer as men with the lowest concentrations

"These results indicate that a high load of PCBs may be positively correlated with an increased risk of prostate cancer

The regulation of cancer risk involves multiple mechanisms, and each disease has a different impact

Further research has shown that exposure to certain PCBs may also increase the risk of breast cancer

However, according to the Illinois Department of Public Health: “There is no evidence that PCBs can cause cancer when the levels in the normal environment are low

"Studies on human workers exposed to high levels of PCBs have not consistently shown that PCBs can cause cancer," the health supervision agency said
.