Evidence map›Paper›PMID 32404470›Full record

ArticleBMJ global health2020

Progress on sodium reduction in South Korea.

Hye-Kyung Park, Yoonna Lee, Baeg-Won Kang, Kwang-Il Kwon, Jong-Wook Kim, Oh-Sang Kwon, Laura K Cobb, Norman R C Campbell, Drew E Blakeman, Cho-Il Kim

Abstract read
In one paragraph

Article in BMJ global health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

48 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  12. Temporal trends in adherence to lifestyle recommendations of patients with hypertension in Korea, 2007-2021.Hypertension research : official journal of the Japanese Society of Hypertension · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Hye-Kyung ParkDirector, Center for Children's Foodservice Management, Osong, Republic of Korea.
Yoonna LeeDepartment of Food & Nutrition, Shingu College, Seongnam, Republic of Korea.
Baeg-Won KangKorea Ministry of Food and Drug Safety, Osong-eup, Republic of Korea.
Kwang-Il KwonNutrition & Functional Food Research Team, Korea Ministry of Food and Drug Safety, Osong-eup, Republic of Korea.
Jong-Wook KimICT Management & Statistics Office, Korea Ministry of Food and Drug Safety, Osong-eup, Republic of Korea.
Oh-Sang KwonImported Food Safety Policy Bureau, Korea Ministry of Food and Drug Safety, Osong-eup, Republic of Korea.
Laura K CobbCardiovascular Health Initiative, Resolve to Save Lives, New York, New York, USA.
Norman R C CampbellDepartment of Medicine, University of Calgary, Calgary, Alberta, Canada.
Drew E BlakemanCardiovascular Health Initiative, Resolve to Save Lives, New York, New York, USA.
Cho-Il KimExecutive Director, Korea Health Industry Development Institute, Cheongju, Republic of Korea kimci@khidi.or.kr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionHigh dietary sodium is a leading contributor to hypertension, and hypertension is the leading underlying cause of death globally. There is a robust body of evidence supporting the health benefits of sodium reduction. Sodium intake in South Korea is high, with about half the population consuming

methodsIn 2012, South Korea implemented its National Plan to Reduce Sodium Intake, with a goal of reducing population sodium consumption by 20%, to 3900 mg/day, by 2020. The plan included five key components: (1) a consumer awareness campaign designed to change food consumption behaviours; (2) increased availability of low-sodium foods at schools and worksites; (3) increased availability of low-sodium meals in restaurants; (4) voluntary reformulation of processed foods to lower sodium content; and (5) development of low-sodium recipes for food prepared at home. Monitoring and evaluation included tracking sodium intake and sources of dietary sodium using the Korea National Health and Nutrition Examination Survey.

resultsBy 2014, South Korea had reduced dietary sodium consumption among adults by 23.7% compared to a survey conducted in 2010 prior to implementation of a nationwide salt reduction campaign that used this comprehensive, multipronged approach. The reductions in sodium intake were accompanied by reductions in population blood pressure and hypertension prevalence. Although causal associations between the sodium reduction programme and reduced sodium intake cannot be made, the declines occurred with the introduction of the programme.

conclusionMulticomponent interventions have great potential to reduce population sodium intake. Lessons learnt from South Korea could be applied to other countries and are likely very relevant to other Asian countries with similar food sources and consumption profiles.

Indexed as

Sodium Chloride, DietarySodium, DietaryAdultHumansNutrition SurveysRepublic of KoreaSodiumSodiumSodium Chloride, DietarySodium, Dietarycardiovascular diseasehealth education and promotionhealth policyhypertensionnutritional and metabolic disorders

Identifiers

PMID32404470
PMCPMC7228482

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.