High blood pressure, or hypertension, hasn’t got any obvious symptoms unless the condition is extreme, according to the NHS.
Signs of extremely high blood pressure include vision problems, having an irregular heartbeat, and finding blood in your urine.
Having hypertension increases your risk of heart attacks, heart disease and strokes.
But, adding more magnesium into your diet could lower your risk of the condition, scientists have claimed.
High blood pressure symptoms: Hypertension risk lowered by adding this nutrient to your diet
People with high blood pressure eat lower amounts of magnesium-rich foods on a daily basis, according to a University of Hertfordshire study.
Researcher Lindsy Kass said: “Magnesium is a key factor in blood pressure regulation and our study suggests that not only can low dietary magnesium intake lead to hypertension but that worryingly, dietary magnesium intake is at lower than currently recommended levels across the board.
“It is important to understand how dietary magnesium impacts blood pressure as that way we can push initiatives to increase knowledge and awareness of this micronutrient, which may help to reduce blood pressure in the UK and subsequently save the NHS money on costly drug intervention.
“Figures show that by reducing the blood pressure of the nation as a whole, £850 million of NHS and social care costs could be avoided over 10 years.”
High blood pressure: Symptoms include chest pain and headaches (GETTY Images)
High blood pressure: More than 25 per cent of UK adults have hypertension (GETTY Images)
Spinach and Swiss chard are both rich in magnesium.
Other foods that are packed full of the nutrient include dark chocolate, pumpkin seeds, almonds, avocado, figs, yogurt and bananas.
Eating more magnesium-rich foods could also lower blood sugar, studies have claimed.
Patients have also reported getting better quality sleep with a diet rich in magnesium.
High blood pressure: Dark chocolate is rich in magnesium (GETTY Images)
High blood pressure: Figs could help to lower your blood sugar (GETTY Images)
The only way to find out if your blood pressure is high is to have it checked.
Left untreated, hypertension increases the risk of serious conditions. That includes heart failure, kidney disease and vascular dementia.
Cutting back on salt could help to lower your blood pressure.
More than 25 per cent of UK adults have high blood pressure, the NHS said.