Question

S fish good for the gut? Researchers tracked 22,000 male physicians for 22 years. Those who reported eating seafood of any kind at least 5 times per week had a 40% lower risk of colon cancer than those who said they ate seafood less than once a week. Is it reasonable to conclude that eating seafood causes a reduction in the risk of colon cancer, based on this study?

Answer 1

Answer:

Probably not.

The reason why is that we don't know if seafood is the only thing that contributed to the lower risk.

Did an increase of seafood in the diet lower other meats such as pork that maybe causes this type of cancer? What about the ration of seafood to vegetables or fruits for both groups. We don't know what vitamins and minerals could be in a deficit for these groups because of their diets.

The only thing that we can conclude here is that a diet rich in seafood could lower the risks but not necessarily because of the seafood but it could be the case none the less. Further research is needed to conclude that there is a connection between seafood and lowering the risks of cancer.