Comparing Two Ways to Measure Protein Intake in Adults with Advanced Chronic Kidney Disease Using Urine Tests

What this Trial Is About

Chronic kidney disease CKD affects about 10% of the population in France, with stages ranging from 1 to 5, where stage 5 requires treatments like dialysis or kidney transplantation. In advanced stages 4 and 5, a low-protein diet may delay the need for dialysis. This research evaluates how well two dietary assessment methodsa detailed 3-day dietary record and a Food Frequency Questionnaire FFQ via a web appmatch with the gold standard of 24-hour urine urea measurement to assess protein intake in people with CKD. Participants will provide protein intake information through the 3-day dietary record and the FFQ questionnaire twice during the study once at the initial dietary consultation and again 6 months later. The FFQ is designed for patients to use on their own via the web app, while the 3-day dietary record is the conventional method. The study compares these dietary tools with the 24-hour urine urea test to see which aligns best with actual protein intake. Participants will be involved in regular dietary consultations where their protein intake will be assessed using the two methods and compared with urine tests. The study will also measure the time dieticians spend collecting data with each method at the start and after 6 months. The main outcome is how well the dietary assessments agree with the urine urea results within one month and again six months later. This study runs through July 2028 and aims to improve dietary management in CKD.

Assessment of Protein Intake Using 2 Types of Nutritional Collection in Chronic Kidney Disease.