5 gram zout of minder per dag verlaagt de bloeddruk

Research Question:
A low sodium intake will lower blood pressure?

Study Design:
This overview article contained 14 cohort studies and 5 Rcts that mortality, cardiovascular heart disease, stroke or coronary heart disease had as outcome measures and 37 Rcts that blood pressure, the functioning of the kidneys, the blood fats and the catecholamineconcentratie had as outcome measures. This review article also contained further 9 Rcts and 1 cohort study that blood pressure in children as outcome measure (= end point of the study) had.  

The Rcts had a follow up to 4 weeks to 36 months (most (n = 31) less than 3 months) with 5508 participants and used 24-hour urine to measure the sodium intake. The difference in the sodium intake between the intervention and control group amounted to 40 mmol/day (920 mg) or more.
The cohort studies had a follow-up of at least 1 year.

The funnel plots showed a low risk of publication bias see.

Results and conclusions:
The researchers found that in adults decreased in 36 Rcts carried out sodium intake the systolic blood pressure significantly with 3.39 mmHg [95% CI = 2.46-4.31] and vacuum significantly with 1.54 mmHg [95% CI = 0.98-2.11] reduced. Significant is, there is a link at a 95% reliability.

The researchers found that a sodium intake of 2 grams or more (equivalent to 5 grams of salt or more) per day compared to less than 2 grams per day, the systolic blood pressure significantly with 3.47 mmHg [95% CI = 0.76-6.18] and vacuum significantly with 1.81 mmHg [95% CI = 0.54-3.08] reduced.

The researchers found in mature that a reduced sodium intake no significant, adverse effects on blood fats, the functioning of the kidneys and catecholamineconcentratie [p > 0.05] had.

The researchers found that an increased intake of sodium at risk of getting a stroke significantly with 24% [95% CI = 1.08-1.43] increased.

The researchers found that an increased intake of sodium the risk of dying from stroke significantly with 63% [95% CI = 1.27-2.10] increased.

The researchers found that an increased intake of sodium the risk of dying from heart disease significantly with 32% [95% CI = 1.13-1.53] increased.

In children led a reduced sodium intake to a significant lowering of systolic blood pressure with 0.84 mmHg [95% CI = 0.25-1.43] and vacuum with 0.87 mmHg [95% = 0.14-1.60].

The subgroup analysis (to get additional information) showed that a reduced sodium intake the blood pressure in both people with high blood pressure as people with normal blood pressure reduced.

The researchers concluded that a low intake of sodium (equivalent to 5 grams of salt or less per day) blood pressure and chances of getting heart disease reduced.

Original title:
Effect or lower sodium intake on health: systematic review and meta-analyses by Aburto NJ, Ziolkovska A, [...], Meerpohl JJ.
Link:
http://www.bmj.com/content/346/bmj.f1326?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+bmj%2Fresearch+%28Latest+BMJ+Research%29

Additional information about El Mondo:
Read more about sodium.
1 grams of salt (sodium chloride) delivers 0.4 and 0.6 grams grams of sodium chloride. So 2 grams sodium corresponds to 5 grams of salt.
It's not salt but that sodium raises blood pressure. Starting from 2014, it is no longer required by the sodium content (though the salinity) of a food to mention on the packaging.

Low salt products are products with 0.1-0.5 grams of sodium per 100 g. What products 0.1-0.5 grams of sodium per 100 grams, you can look up here.
Salt-rich products are products with more than 0.3 grams of salt per 100 kcal or more than 0.5 grams of sodium per 100 g. With this formula, you can calculate, or a product in the supermarket salt is rich or not.
5 grams of salt per day corresponds to a power supply with up to 0.25 grams of salt per 100 kcal.