Fig. 1

In the salt deprivation phase, Participants will be recruited on day 0, urine sample collected and requested to avoid adding salt to their food or consume processed foods that contain salt for the next 7 days. In the low salt phase, participants will be provided with 2.3 g of sodium everyday apportioned in three parts to add to their meals. In the high salt phase participants will be provided with 9 g of dietary salt and split as previously described above. Blood pressure (BP) will be measured everyday (day 0 to 21) between 17:00 and 19:00 h or between 06:00 and 08:00 h. Ambulatory blood pressure (AMBP) will be measured on days 7, 14 and 21. A 24-h urine will be collected on days 14 and 21 for urinalysis