Fish oil may counter weight loss in cancer patients undergoing chemotherapy, according to a new study published in the online edition of the journal Cancer.

In the study, researchers at the University of Alberta in Edmonton, Canada, enrolled 40 patients with non-small-cell lung cancer. They were all in the early stages of treatment. Sixteen of those patients took 2.2 grams of fish oil per day, while the remaining 24 received standard care. The study, which lasted about 10 weeks, ran until the patients completed their initial chemotherapy treatments.