Adjusting your diet: Potassium

Potassium is an important mineral that your body requires for proper functioning. You will normally receive the recommended daily amount in your diet; however, if you are taking diuretics for your heart failure, your body may lose some of this potassium. You may be prescribed a type of diuretic or adjust your other medication to prevent this from happening. You may be advised to supplement your diet with foods rich in potassium.

The following foods provide good sources of potassium:

  • bananas
  • oranges
  • prunes
  • soybeans
  • cantaloupe melon
  • fish such as halibut or flounder
  • potatoes.

Eating salty foods will increase the amount of sodium in your body and as a result, your body may lose potassium. It is important, therefore, to reduce your salt intake.

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ESC Guidelines for Heart Failure

What patients need to know

This guide for patients from the European Society of Cardiology aims to provide an overview of the latest evidence-based recommendations for the diagnosis and treatment of heart failure.

In particular, it should help patients to understand the:

  • main types of heart failure
  • medicines used to treat heart failure
  • devices that may be appropriate
  • importance of rehabilitation
  • management by a multidisciplinary team
  • importance of self-care in managing your own condition

Learn more


A series of 9 simple, captivating animations explaining heart failure and its treatment.

These narrated animations explain how a healthy heart works, what happens to it in heart failure and how various treatments work to improve your health.


In this section you can watch, listen or read interviews with other people with heart failure and their caregivers.


and share your own views and experiences with other patients, families and caregivers. is a European Society of Cardiology website

The website was developed under the direction of the Heart Failure Association of the European Society of Cardiology (ESC). The ESC is a world leader in the discovery and dissemination of best practices in cardiovascular medicine. Our members and decision-makers are healthcare professionals who volunteer their time and expertise to represent professionals in the field of cardiology in Europe and beyond.

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