The study cannot recruit the expected number of participants. Only 19 participants were recruited and no more new participant was recruited after that.

A pilot randomized controlled trial will be conducted to investigate the feasibility and effectiveness of a salt intake reduction intervention to young hypertension patients in Hong Kong who had high salt intake.

Convenience sample will be recruited from the community in Hong Kong through different channels of promotion.

Inclusion Criteria:

• i) adults aged 18 to 44
• ii) diagnosed hypertension or borderline hypertension
• iii) complete collection of 24-hour urine at baseline
• iv) 24-hour urinary sodium excretion above 2000mg at baseline
• v) can communicate in Cantonese

Exclusion Criteria:

• i) renal illnesses;
• ii) taking diuretics;
• iii) taking RAS blockers;
• iv) attending or planning to attend new hypertension education programme or salt intake reduction programme during the study period.