Breast cancer: Omega-3s could reduce its progression

Breast cancer: Omega-3s could reduce its progression


For memory, for cardiovascular health, for morale, for their anti-inflammatory properties… omega-3s are definitely popular. We can no longer count the number of studies that praise them for health, and in particular for rebalance the omega-3 / omega-6 ratio, undermined by our Western diets high in saturated fat.

As Pink October continues, a study on the link between omega-3 contained in fish oils and breast cancer has achieved impressive results. Conducted on mice and published in the journal Clinical & Experimental Metastasis, she suggests that consuming omega-3s from fish oils could inhibit the growth and spread of breast cancer cells. An action which would be due to the anti-inflammatory and immune properties of omega-3s.

Two groups of adult female mice were used here. While all of the mice ate the same number of calories each day, with the same percentage of fat, some ate a diet high in omega-6 polyunsaturated fatty acids, while others were fed fish oil. rich in omega-3 fatty acids. All were then injected with 4T1 breast cancer cells, cancer responsible for aggressive tumors, whose cells spread spontaneously to the bones, lungs, liver, and less frequently to the heart, kidneys or ovaries. An autopsy was performed in the mice 35 days after the cancer injection.

Less inflammation and a greater immune response

Results: The risk of breast cancer cells developing in the mammary glands of mice was significantly lower in “omega-3” mice than in non-omega-3 mice. 35 days after the injection, mammary tumors of “omega-3” mice were 50% smaller than those developed in the “omega-6” group. The likelihood of these cancer cells spreading was also found to be lower in the “omega-3” mice than in the “omega-6” group. Even more impressive: some mice in the omega-3 diet seemed to never have had even one cancer cell! The “omega-3” mice also had less inflammation and more white blood cells (T lymphocytes) than the others in their breast tissue, sign of a stronger immune response.

Although the researchers remain cautious, they point out that a diet rich in omega-3 fatty acids that are found in fatty fish, eggs and in certain vegetable oils (flax, rapeseed, walnuts, etc.) could help prevent the occurrence and spread of breast cancer.

Source: Eurekalert

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