Risk assessmentindependent cross-checkabstract checked I-SOD-128 standard review
Taxing sugary drinks in Egypt could prevent diabetes
The potential health effects of taxing sugar-sweetened drinks in Egypt: An epidemiologic-economic modelling study.
Overview
Dalugoda Y et al.. Public Health Pract (Oxf) 2026 · PMID 42058140 · DOI 10.1016/j.puhip.2026.100786
A 2026 model estimated that a 20% tax on sugary drinks in Egypt could prevent about 250,000 cases of type 2 diabetes over 25 years.
Does the study support the specific claim? Yes · Methodological quality: moderate
Plain-language summary
Study explained simply
- What did the researchers want to find out?
Model the health effects of a sugary-drink tax in Egypt.
- How was the study done?
Life-table simulation.
- How many people, animals or samples were studied?
Egyptian population.
- What was actually found?
Fewer cases of obesity, diabetes, heart disease and tooth decay.
- How large was the observed effect?
250,000 T2D cases prevented over 25 years.
- What do the results mean in everyday life?
Sugary drinks matter for health in Egypt too.
- What are the study's limitations?
Model assumptions.
- What does it say about Elawady's specific claim?
Supports the regional relevance of the claim.
- Do the results apply to Germany and Europe?
Egypt-specific.
- What can explicitly not be concluded from this study?
Cannot prove causation.
Scientific in-depth review
1. Full reference
- Authors
- Dalugoda Y et al.
- Journal
- Public Health Pract (Oxf)
- Year
- 2026
- Identifier
- PMID 42058140 DOI 10.1016/j.puhip.2026.100786
- Verification
- verified – PubMed efetch 2026-10-26 + Crossref 2026-10-26
- Retracted
- no
- Corrections
- none
- Extent checked
- abstract only
- Conflicts of interest and funding
Authors declare no competing interests (PubMed record)
2. Research question
What would a 20% SSB price increase do to health outcomes and costs in Egypt?
3. Study design and population
- Study design
- Risk assessment – Proportional multi-state life-table model
- Population
Egyptian population (2019)
- Country
Egypt
- Period
25 years and lifetime
- Sample size
Population model
- Inclusion and exclusion criteria
Not applicable
4. Methods and endpoints
- Exposure / intervention
SSB tax raising prices by 20%
- Comparator
No tax
- Endpoints
Obesity, T2D, heart disease, stroke, cancer, tooth decay, HALYs, costs
- Statistical methods
Simulation with uncertainty intervals
5. Actual results
- Results
Over 25 years: 350,000 (320,000-390,000) obesity cases, 250,000 (196,000-324,000) T2D cases, 56,000 heart disease, 39,000 stroke, 2700 cancer cases and 30.9 million instances of tooth decay prevented; 1.6 million HALYs gained over the lifetime; USD 1.8 billion health-care savings.
- Absolute risks
Population-level modelled counts
- Authors' conclusion
Taxing SSBs could produce significant health benefits and cost savings in Egypt.
6. Strengths
- Egypt-specific inputs
- Multiple outcomes
7. Weaknesses
- Model based on assumed causal effects and price elasticities
- Uses international and Egyptian data of variable quality
8. Risk of bias
- Orienting tool
- none applicable
- Type of assessment
- simplified assessment (abstract only)
- Full formal assessment
- no
- Overall risk of bias
- some concerns
- Rationale
Modelling assumptions.
9. Assessment of the statistical interpretation
Outputs reflect input assumptions; not independent evidence of harm.
10. Relevance to the specific claim
Regional relevance for C-SOD-01 (and C-SOD-11): Egypt-specific modelling assumes and quantifies SSB-related diabetes and caries burden.
11. Independent contrary findings
Causal assumptions.
12. Transferability to Germany and Europe
Egypt-specific.
13. Overall methodological judgement
Shows the claim's public-health relevance in Egypt.
| Multidimensional assessment | |
|---|---|
| Authenticity of the source | verified |
| Methodological quality | moderate |
| Risk of bias | some concerns |
| Precision of results | moderate |
| Directness | indirect |
| Reproducibility | unknown |
| Consistency with the overall evidence | consistent |
| Regional transferability | high |
| Adequacy of the interpretation (by the archive) | not applicable |
14. Open questions
Measured SSB intake in Egypt.