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Although a diet low in protein is well known to reduce the risk of progression in patients with chronic kidney disease (CKD), the impact of dietary fat content and fat quality has largely been ignored. As a reduced protein intake results in an obligatory reduction in energy intake, and as CKD patients often suffer from energy malnutrition, this issue deserves greater attention. The present review aims to summarize what is currently known about dietary fat intake in CKD and suggests areas for further study. We conclude that although overweight per se is an important risk factor for the development of CKD, the role of obesity as a risk factor for complications in manifest CKD remains unclear. Current data support a balanced increase in dietary fat intake in patients with CKD to compensate for reduced energy intake in protein-restricted diets and anorexic patients. However, patients who are obese should be encouraged to lose weight while maintaining or, preferably, increasing muscle mass.

Although a diet low in protein is well known to reduce the risk of progression in patients with chronic kidney disease (CKD), the impact of dietary fat content and fat quality has largely been ignored. As a reduced protein intake results in an obligatory reduction in energy intake, and as CKD patients often suffer from energy malnutrition, this issue deserves greater attention. The present review aims to summarize what is currently known about dietary fat intake in CKD and suggests areas for further study. We conclude that although overweight per se is an important risk factor for the development of CKD, the role of obesity as a risk factor for complications in manifest CKD remains unclear. Current data support a balanced increase in dietary fat intake in patients with CKD to compensate for reduced energy intake in protein-restricted diets and anorexic patients. However, patients who are obese should be encouraged to lose weight while maintaining or, preferably, increasing muscle mass.