The Study
Global burden of gastric cancer attributed to high-salt diets: spatiotemporal trends and socio-demographic inequalities from 1990 to 2021
This study is like looking at photos of different countries' eating habits and health records over time. It shows that places where people eat more salt tend to have more stomach cancer, but it can't prove the salt actually causes the cancer because there could be other reasons for the connection.
Analysis score
Maximum 44 for a cross-sectional study.
Where the score came from
Eating too much salt can hurt your stomach and lead to cancer over time.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 540 / 100
Quality score
Snapshots of a population at a single point in time, or descriptions of small groups. Can identify correlations and prevalence, but cannot determine cause and effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Yes, reducing salt saves lives, but some places need more help.
- 2From 1990 to 2021, deaths from salt-related stomach cancer dropped almost half worldwide, but rich countries did better than poor ones.
- 3Men got sick more often than women.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Journal of Gastrointestinal Oncology
Year
2025
Authors
Wei Liu, Yang Liu, Hua-wan Chen, Zhen-zhen Peng, Kui Liao
Related Content
Claims (6)
Eating a lot of salty preserved foods can hurt your stomach lining and cause long-term swelling, making you more likely to get stomach cancer after many years.
Fewer people worldwide are dying or suffering long-term health problems from stomach cancer linked to eating too much salt, with death rates dropping by almost half and overall health impact decreasing by more than half since 1990.
Areas with higher wealth and development saw much bigger drops in salt-related stomach cancer deaths and health problems from 1990 to 2021 than poorer areas, showing a big gap between rich and poor regions.
This is about how eating too much salt can lead to stomach cancer. It says that in East Asia, fewer people are dying from this type of cancer now compared to 30 years ago, and people are also living healthier lives without as much sickness from it.
Men are much more likely than women to die or suffer from stomach cancer due to eating too much salt, with rates over twice as high in 2021.
As people get older, more of them get sick with stomach cancer from eating too much salt. This cancels out some health improvements in certain areas and leads to more years of poor health, even though overall cancer rates are going down.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.