High blood pressure: Sodium may not be the culprit
For some people, high salt intake can cause high blood pressure — and create a vicious cycle of heart and kidney damage. Are you at risk? Looking at the Link Between Salt and Heart Failure. November 23, / Nutrition. In those communities with lower salt intake, the inverse relationship was seen - increased salt lowered blood pressure. This held true for. Salt; Mechanism of Action: How Salt is Related to Blood Pressure; Age: Salt Intake Reduction on Blood Pressure in the Young Versus Old(er); Correlation of Salt.
Over the year follow-up period, the researchers observed that the participants who consumed under 2, milligrams of sodium each day had higher blood pressure than those who consumed higher quantities of sodium. The results seem counterintuitive. As the authors write: Research has shown that there is a "J-shaped relationship" between cardiovascular risk and sodium.
This means that low-sodium diets and very high-sodium diets both carry a higher risk of heart disease. Many people in the United States sit in the middle of this curve, where the cardiovascular risk is at its lowest. Our findings add to growing evidence that current recommendations for sodium intake may be misguided. Moore Potassium as important as sodium The importance of dietary potassium is also underlined in this study.
The team found that individuals with the lowest blood pressure were those who had the highest intake of sodium and potassium.
Conversely, those with the highest blood pressure had the lowest intake of sodium and potassium. The authors conclude that: This study does support the finding of a clear inverse association between potassium, magnesium, and calcium and blood pressure change over time.
Perhaps in the future, methods of screening for salt sensitivity might help to establish which individuals need to be more careful. Too much salt can lead to a heart attack Heart The raised blood pressure caused by eating too much salt may damage the arteries leading to the heart. At first, it may cause a slight reduction in the amount of blood reaching the heart.
This may lead to angina sharp pains in the chest when being active.
With this condition the cells in the heart don't work as well as they should because they are not receiving enough oxygen and nutrients. However, lowering blood pressure may help to alleviate some of the problems and reduce the risk of greater damage.
If this happens, then the part of the heart that was receiving the blood no longer gets the oxygen and nutrients it needs and dies. The result is a heart attack.
The best way to prevent a heart attack is to stop the arteries becoming damaged. And one of the best ways of doing this is keep your blood pressure down by eating less salt.
Eating too much salt raises your risk of a stroke Brain The raised blood pressure caused by eating too much salt may damage the arteries leading to the brain.
Blood pressure - Action on Salt
At first, it may cause a slight reduction in the amount of blood reaching the brain. This may lead to dementia known as vascular dementia. With this condition the cells in the brain don't work as well as they should because they are not receiving enough oxygen and nutrients.
If this happens, then the part of the brain that was receiving the blood no longer gets the oxygen and nutrients it needs and dies. The result is a stroke, where you lose the ability to do the things that part of the brain used to control.Should You Restrict Your Salt Intake?
The best way to prevent a stroke is to stop the arteries becoming damaged.