High Potassium Diet Rich in Spices and Herbs-Salt Substitution (HPSH-SS) for Blood Pressure Reduction in Older Adults: Protocol for Diet Concept and Randomized Controlled Trial

Farapti Farapti   ^{1, 2} , MD, MNutr, PhD ;   Sheila Amara Putri   ¹ , BNutr ;   Annisaa Wulida Furqonia   ^{1, 3} , BNutr ;   Purwo Sri Rejeki   ⁴ , MD, MNutr, PhD ;   Muhammad Miftahussurur   ^{5, 6} , MD, MPH, PhD

¹ Department of Nutrition, Faculty of Public Health, Universitas Airlangga, Surabaya, Indonesia

² Doctoral Program of Medical Science, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia

³ Government of Sobrah Village, Wungu District, Madiun Regency, Indonesia

⁴ Department of Physiology, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia

⁵ Gastroentero-Hepatology Division, Department of Internal Medicine, Dr Soetomo Teaching Hospital, Surabaya, Indonesia

⁶ Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia