Table 1.

Inclusion and exclusion criteria performed by patient, intervention, comparison, and outcome (PICOS) strategy.

	Inclusion criteria	Exclusion criteria
Population	Adult (>18 y) with a clinical diagnosis of cancer cachexia	Adult (<18 y); non-cancer cachectic patients
Intervention	Any isolated omega-3 supplementation or in combination with other nutrients of any duration	No omega-3 supplementation
Counterpart	Any counterpart group	None
Outcomes	Inflammatory profile and body composition (measured by any means)	None
Study design	Randomized controlled trial	Nonrandomized controlled trial