2021 Volume 56 Issue 2 Pages 149-157
【Objectives】 The purpose of this study is to clarify the dietary intakes of protein and salt in Japanese kidney transplant recipients (KTRs) over one year after the transplantation, and to identify nutritional issues in KTRs.
【Design】 Case-series study at a single center.
【Methods】 In 100 cases of non-diabetic adult KTRs at Japan Community Health Care Organization Sendai Hospital from 2005 to 2018, daily protein and salt intakes were determined by 24-hour urine collection, and their clinical and nutritional parameters were evaluated over one year after the transplantation. Using Dunnett’s test, the parameters at 3, 6, 9, and 12 months after the transplantation were compared to those at one month.
【Results】 At 6 months after the transplantation, the mean protein intake was increased significantly compared to that at one month. The mean salt intake over one year was 10.9 g/day, exceeding the dietary reference intake of salt (3-6 g/day). However, their BMI, body composition, nutritional and immunological parameters over one year after the transplantation were almost within the normal range, and the kidney functions were maintained stably in 72% of KTRs.
【Conclusion】 These results show that the nutritional and immunological parameters as well as kidney functions in KTRs were favorably maintained over one year after the transplantation. The salt intake of the KTRs should be managed in terms of the deterioration of kidney function and the appearance of circulatory diseases in the future.
