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Based on the doses given in the study, humans should consume two to three servings of fish a week to have the same effect. Pixabay
  • Omega-3 fatty acids from fish pack a stronger punch than flaxseed and other oils
  • This study is the first to compare the cancer-fighting potency of plant-versus marine-derived Omega-3s on breast tumor development
  • Based on the doses given in the study, humans should consume two to three servings of fish a week to have the same effect

When it comes to cancer prevention, Omega-3 fatty acids from fish pack a stronger punch than flaxseed and other oils, new research has found.

Marine-based omega-3s are eight times more effective at inhibiting tumor development and growth than plant-based sources, said the study published in the Journal of Nutritional Biochemistry.


“This study is the first to compare the cancer-fighting potency of plant-versus marine-derived Omega-3s on breast tumor development,” said David Ma, Professor at the University of Guelph in Ontario.

ALSO READ: Here’s how eating fish could be IQ booster for your kid


There are three types of Omega-3 fatty acids: a-linolenic acid (ALA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Pixabay

“There is evidence that both Omega-3s from plants and marine sources are protective against cancer and we wanted to determine which form is more effective,” Ma said.

ALA is plant-based and found in such edible seeds as flaxseed and in oils, such as soy, canola and hemp oil.

EPA and DHA are found in marine life, such as fish, algae, and phytoplankton.

The study involved feeding the different types of Omega-3s to mice with a highly aggressive form of human breast cancer called HER-2.

Ma exposed the mice to either the plant-based or the marine-based Omega-3s.

“The mice were exposed to the different omega-3s even before tumors developed, which allowed us to compare how effective the fatty acids are at prevention,” said Ma.


Overall exposure to marine-based omega-3s reduced the size of the tumors by 60 to 70 percent and the number of tumors by 30 percent. Pixabay

ALSO READ: Benefits of eating fish in boosting IQ

However, higher doses of the plant-based fatty acid were required to deliver the same impact as the marine-based Omega-3s, the study said.

Omega-3s prevent and fight cancer by turning on genes associated with the immune system and blocking tumor growth pathways, said Ma.

Based on the doses given in the study, humans should consume two to three servings of fish a week to have the same effect, he said. (IANS)


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