Intravenous lipid emulsions (LEs) are an indispensable part of home parenteral nutrition (HPN). All commercially obtainable LEs are applicable for HPN in providing a source of energy and essential fatty acids. The originally used soyabean oil-based LE (Intralipid) have been suspected of being associated with a higher risk of pro-inflammatory lipid-mediator production due to their high content of n-6 polyunsaturated fatty acids. The more modern mixes of soyabean oil, and/or olive oil, and/or fish oil LEs with beneficial responses compared with Intralipid are available. Given that there are no clear clinical recommendations for LE application in HPN, we performed this cross-over design, phase 4 study comparing ClinOleic, Lipoplus or SMOFlipid in chronic intestinal failure patients with additional escalation of fish oil using Omegaven.