High blood pressure, or hypertension, is a widespread cardiovascular condition affecting around five million people in the UK. Often called the ‘silent killer’ due to its lack of obvious symptoms, hypertension places extra strain on the heart and arteries, increasing the likelihood of heart attacks and strokes.
Recent research highlights a simple dietary change that could help combat this risk: increasing potassium intake. Potassium plays a vital role in flushing excess salt from the bloodstream, which can help lower blood pressure.
Bananas, among the best and most affordable potassium sources, can deliver this benefit. A study by Imperial College London, published in the Journal of Human Hypertension, found that an additional gram of potassium daily—equivalent to about two medium bananas—can be advantageous for blood pressure control. Two bananas can be purchased for as little as 16p a day at supermarkets like ALDI, making this an accessible option for many.
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Phil Pyatt, CEO of Blood Pressure UK, emphasizes the importance of such findings: “This study and its findings are especially important for people who want to take proactive steps to make their lifestyles blood-pressure-friendly. It’s encouraging that small, healthy dietary changes can have a significant impact.”
However, experts advise caution against excessive potassium intake. Dr. Teresa Castiello, an NHS consultant cardiologist, notes, “Excessive potassium could be a risk to your heart. We just need to be aware of the balance.”
The NHS recommends that adults aged 19 to 64 consume about 3,500mg of potassium daily and warns that too much potassium can cause stomach pain, nausea, and diarrhea. They stress the importance of a varied and balanced diet to meet potassium needs, advising those who take supplements to avoid overconsumption due to potential health risks.
In summary, incorporating two affordable bananas daily could be a simple yet effective way to support healthy blood pressure levels. As always, moderation and balance remain key to maintaining overall heart health.