Fish oil supplements ’should not be used’ by those on chemo

The fatty acids, omega-3 and omega-6, are found in high amounts in predatory fish like swordfish, salmon, mackerel and sharks. They gain them from eating smaller prey fish, who themselves feast on tiny algae that contain these fatty-acids - such oils appear to be passed up the food chain, rather than being broken down. As well as being linked to helping prevent cancer, and to slowing the spread of breast, colon and prostate cancer, these oils are also thought to improve heart health.
That has led to many people suffering from cancer using fish-oil supplements labeled as containing omega-3 or omega-6 - or similar products from algal sources - to help them in their struggle against cancer. But whilst the health-giving benefits of omega fatty acids are not cast into doubt by this new study, the researchers are recommending that those under-going chemotherapy should not take omega-oil enriched supplements, during chemo treatment.