Health effects of fish consumption have been demonstrated in epidemiological studies and in controlled intervention studies in a number of different population groups, however, randomized controlled studies on the effect of fish consumption in elderly are sparse. Many studies have focused on n-3 fatty acids instead of fish as a food and therefore, many health effects have only been related to the effect of n- 3 fatty acids. The elderly are a heterogeneous population group and therefore difficult to study. In order to reduce heterogeneity, it is advisable to focus on elderly with specific needs. Elderly who experienced a hip fracture can serve as a model for an advanced ageing process, as these patients typically experience a huge inflammatory response, immobilisation and a reduction in muscle mass. Increased fish intake is believed to have effects towards inflammation and a reduction in muscle mass. Therefore, we want to test whether increased fish intake can have positive health effects in elderly who experienced a hip fracture.