Extended data
Potassium is an essential mineral, which mainly exists in fruits, vegetables and beans. It is relatively common that people fail to get enough potassium to meet their daily needs. In this case, changing their diet to get more potassium seems to have a high protective effect on circulatory diseases such as cardiac arrest and stroke.
Potassium is an essential mineral in human diet, which is rich in fruits, vegetables and beans. When it comes to the regulation of blood pressure and water in the body, it is usually regarded as the opposite of sodium, in which a high-potassium diet is related to the reduction of blood pressure.
As far as potassium is concerned, when it comes to circulatory diseases such as cardiovascular diseases, especially stroke, increasing potassium intake can see benefits. This benefit can be seen when the intake of potassium increases slightly (500 mg per day) or a few grams per day, regardless of the form of potassium intake (food or supplement), even if the intake of sodium remains the same.
In reviewing the comments on the relationship between potassium intake and the incidence of stroke, the meta-analysis of subjects found that the protective effects, such as the reduction of stroke risk by 265,438+0%, were related to the increase of potassium intake by 65,438+0.64 g per day, and the reduction of stroke risk by 24% was related to the dietary potassium level approaching 3,565,438+00-680 mg. Many other meta-analyses have found similar effects, including a cohort study of health professionals and nurses in the United States and a study of 12, which found that a small amount of potassium intake of about 390 mg per day was associated with a 40% reduction in stroke mortality among adults aged 50-79. This risk reduction seems to be greater than the beneficial effect of potassium on heart health, which is thought to be because potassium not only affects blood pressure (the main risk factor of stroke), but also has direct and independent effects. Because some studies show that even controlling blood pressure can prevent stroke.
This beneficial effect is not particularly suitable for supplementation, because three servings of fruits and vegetables a day will also reduce the risk of stroke, and the risk of stroke will be reduced by 22%, which has nothing to do with blood pressure, and people think that it is partly due to potassium.
Although the protective effect seems to be dose-independent, potassium intake seems to have a strong protective effect on stroke, because both a slight and a large increase in potassium intake have a strong protective effect.
It is found that potassium intake is related to calcium retention in other healthy adults, and lower potassium intake is related to more calcium loss in urine, while increasing potassium intake seems to retain calcium and reduce urine loss.
At the time of supplementation, taking potassium (as citrate) in postmenopausal women with osteopenia within one year seems to effectively reduce some biomarkers of bone turnover, such as u-NTX and P 1NP, which indicates that it has a protective effect on bone mineral density; There was no significant change in lumbar or hip bone mineral density between the two groups, but this was partly due to the relatively short study time.
The protective mechanism of potassium on stroke may also affect post-stroke injuries, including kidney injuries.