Here is the design of a clinical trial:

Official Title: Randomized Controlled Trial With SALT CONTROL H - Impact on Individual Sodium and Sodium to Potassium Ratio Excretion

Included conditions:
- Salt; Excess
- Hypertension

Study Armgroups:
- {'label': 'Intervention', 'type': 'EXPERIMENTAL', 'description': 'The intervention will last for 8 weeks, an individual session of presentation of SALT CONTROL H will be carried out, with explanation of how the equipment works in the culinary preparation with an adequate salt content (will be used an illustrative video and recipes with an adequate salt content); use of SALT CONTROL H at home by the participant to control the use of salt during the cooking process; supervision and enhancement of the use of equipment; daily occurrence log; and the application of a satisfaction questionnaire on the use of SALT CONTROL H. A leaflet will also be delivered about "The new Food Wheel, a guide to the daily food choice!".', 'interventionNames': ['Device: SALT CONTROL H equipment to control and monitor salt during cooking process']}
- {'label': 'Control', 'type': 'NO_INTERVENTION', 'description': 'No intervention will be carried out except the provision of a leaflet on "The new Food Wheel, a guide to the daily food choice!" to the participants.'}

Interventions:
- {'type': 'DEVICE', 'name': 'SALT CONTROL H equipment to control and monitor salt during cooking process', 'description': 'Participants will use SALT CONTROL H at home during 8 weeks to cook meals with adequate salt content.', 'armGroupLabels': ['Intervention']}

Primary Outcomes:
- {'measure': 'Change from Baseline 24h urinary sodium excretion at during and after intervention', 'description': 'Sodium excretion as a proxy of dietary salt intake', 'timeFrame': 'Baseline, at the 4th and 8th intervention weeks, and 6 months after intervention'}

Please estimate the sample size based on the assumption: 
More than 80% statistical power at a significance level of 0.05 bicaudal, with a 20% participant dropout rate.
Sample size
        The sample size was calculated to provide more than 80% statistical power at a significance level of 0.05 bicaudal, assuming a difference in the mean 24-hour urinary sodium excretion equal to or greater than 27âmmol/day between IG and CG, with an SD of 70âmmol/day.29 In addition, this calculation was adjusted considering a 20% participant dropout, resulting in a sample size of 260 participants. A subsample of participants (n=20) will be used for intestinal microbiota analysis.