EvalSel can precisely assess the salt intake of hospitalized patients in nephrology and cardiology or in medical consultation. It can determine salt consumption to the nearest gram.

The objectives of this food frequency questionnaire are to arrive at a precise dietary diagnosis and to quickly identify the dietary errors made by the patients.

EvalSel is useful for doctors to quickly obtain an assessment of the salt consumption of their patients, so they can refer them to dietitians if necessary. It can be used on the day of admission to hospital or during medical follow-ups to know the evolution of their consumption over the long term and improve their care.

Inclusion Criteria:

• Patients with high blood pressure, CKD stages 4-5 and patients free from any diseases
• Patients over 18 years old
• Patients in nephrology and cardiology consultation or recruited by CIC
• Patients with health insurance
• Patients willing to follow the full study

Exclusion Criteria:

• Loss of salt by vomiting, diarrhea or sweating (intense sport or intense fever 3 days before urine collection) which can cause a decreasing natriuresis
• Modification of the therapeutic management of patients during the study period
• Taking certain drugs like effervescent drugs, Gaviscon and Tolvaptan during the day of urine collection, as well as diuretics (unless they are taken long-term and the diuresis is stable) which can cause an increasing natriuresis
• Pregnant or breastfeeding women
• Patients protected by law