Nutrition Services for Cancer Patients

Omega-3 Fatty Acids as Part of Your Cancer Diet

Researchers are studying the effects omega-3 fatty acids have on delaying or reducing tumor development in breast and prostate cancer. Since our bodies cannot make omega-3 fatty acids, we must get them from food or supplements. The omega-3 fatty acids include:

• Alpha-linolenic acid
• Eicosapentaenoic acid
• Docosahexaenoic acid

Sources and recommended servings of omega-3 fatty acids

Sources and recommended servings of foods high in omega-3 fatty acids include:

• Seafood, especially cold-water fish like salmon, mackerel, sardines, herring, halibut, stripped bass, tuna, and lake trout (aim for three to four servings of these fish every week)
• Flaxseed oil and beans such as kidney, great northern, navy, and soybeans

When to avoid omega-3 fatty acids

The American Cancer Society recommends avoiding omega-3 fatty acid supplements in the following situations:

• If you take anticoagulant medications or aspirin, as omega-3 fatty acid supplements may increase the risk of excessive bleeding.
• If you have elevated cholesterol levels, as omega-3 fatty acid supplements may continue to increase your cholesterol levels.
• If you are pregnant or breastfeeding. Women should talk to their doctors before taking omega-3 supplements or any dietary supplements.
• If you are menstruating, as omega-3 fatty acid supplements may increase the tendency of developing anemia.