Eating one avocado or banana a day helps reduce the risk of heart disease. This is because of the presence of potassium in banana and avocado. They prevent the hardening of arteries, which can result in the heart attacks.
The study was conducted on mice in a research laboratory. For one mouse, they gave food with a high-fat diet and fewer amounts of potassium in diet. Other mice were given a large amount of potassium in diet. Finally, the study showed that foods rich in potassium reduce the hardening of arteries and heart-related ailments.
As people grow old, the arteries stiffen and lead to heart strokes. Nutrients like potassium reduce the chances of arteries getting stiffened with age.
Reduced intake of potassium can also expose you to other diseases like atherosclerosis and other chronic kidney diseases. All these diseases share a common aspect among them (that is vascular calcification).
Not only this, banana and avocado have a vital mineral, which aids blood flow to the heart and brain. This reduces the clots. Fish and poultry are also rich in potassium.
Officials of NHS advice people to take 3500mg of potassium daily to stay healthy and safe from heart diseases. 4 bananas a day can contribute to half of the required potassium amount. However, having more bananas in a day can lead to diarrhoea, nausea and stomach ache.
Even older people are asked to consume less because their kidneys would not be able to remove more potassium from the blood.
Dr. Mike Knapton from the British Heart Foundation stated that the research on mice showed that decrease in potassium intake would cause heart-related diseases. However, they need to do more research on it and find out if the disease forms in a similar manner and develop treatment according to it.