Research

Mixed

Increased intake of EPA and DHA improves quality of life, appetite, and physical functioning in cancer patients, particularly those with non-small cell lung cancer and head/neck squamous cell cancer, and may enhance chemotherapy efficacy.

For cancer patients, particularly those with lung or head/neck cancer, high-dose EPA and DHA supplementation (1.8-3g daily) may improve appetite, body weight, and quality of life. Some evidence suggests it may also enhance the effectiveness of chemotherapy. Consult with an oncologist before starting high-dose supplements.

ModerateSupportsMEDIUM confidence
A systematic review concluded that lung cancer patients receiving supplements containing EPA and DHA had improved appetite, energy intake, body weight and quality of life... Murphy et al. conducted a trial in patients with non-small cell lung cancer and showed that 2.5 g EPA + DHA daily caused a 2-fold increase in response rate to the chemotherapy being used.
Philip C. Calder · Proceedings of The Nutrition Society · 2017

Why this rating

Based on specific trials and systematic reviews, but the paper notes inconsistency in prospective studies regarding cancer risk prevention.

Source

Very long-chain<i>n</i>-3 fatty acids and human health: fact, fiction and the future

Philip C. Calder · Proceedings of The Nutrition Society · 2017

DOI 10.1017/s0029665117003950

narrative_reviewCited 395×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →