Participants will install and use a mobile application designed to provide nutritional recommendations for hypertensive patients. These recommendations will be based on the DASH diet guidelines appropriate to patient profile: consumption of whole grains, fruits, vegetables, milk or low fat dairy products, lean meats, poultry and fish, nuts, seeds and legumes, amount of fats, oils and sweets, as well as guidelines for salt intake and alcohol. The call service will be offered by the Center for Telehealth Rio Grande do Sul to answer clinic questions with qualified staff and in real time. All physicians who work in Primary Health Care in Brazil can use this call center when they have questions about diagnosis and management of their patients.

Physicians who are enrolled for this group will continue performing routine nutritional counseling in their clinical practice. The call service will be offered by the Center for Telehealth Rio Grande do Sul to answer clinic questions with qualified staff and in real time. All physicians who work in Primary Health Care in Brazil can use this call service when they have questions about diagnosis and management of their patients.

Use the call service offered by the Center for Telehealth Rio Grande do Sul to answer clinic questions with qualified staff and in real time. All physicians who work in Primary Health Care in Brazil can call when they have questions about diagnosis and management of their patients.

For each correct answer, participant will get one point on the knowledge test and for each incorrect answer will get 0. Thus, possible scores will range from 69 to 0. Data based on questions about the abilities will be summarized in a qualitative ranking.