A Community Health Worker-Led LSSS Intervention in Bangladesh

Inclusion Criteria: * Our target population is that of adults living in rural Bangladesh, while our study population will be comprised of adults (age ≥18 years old) living in Parbatipur, a rural/semi-rural sub-district in Dinajpur District (Rangpur Division), in the north of the country. Within Parbatipur, BRAC University has assessed 700 households for NCD risk factors as part of a larger Wellcome-trust funded multinational biobank (involving those living in Bangladesh, India, Pakistan, and Sri Lanka) to better understand the patterns and determinants of cardiovascular health in South Asian people in a cross-sectional analysis. All adults living in these surveyed households will be eligible to participate. Exclusion Criteria: * Exclusion criteria include subjects taking potassium-sparing diuretics, already taking potassium supplements, or those who have known kidney disease at baseline. * All adults initially screened for intervention will undergo serum creatinine testing, with those with values \>106 mMol/L for males and \>97 mMol/L for female excluded from the intervention but kept in the intervention group by intention-to-treat principles to avoid breaking of randomization. * Although minors will not be involved in the study, to avoid spillover injury to children in the intervention households, all members of intervention households under the age of 18 will also undergo urine dipstick testing. If proteinuria is detected, the household will be excluded from receiving the LSSS intervention (but followed in the intervention arm to avoid breaking randomization).