Artificial sweeteners (aspartame, acesulfame-K, sucralose) are linked to higher cancer and cardiovascular risk.
Original statement
ترفع خطر أمراض القلب ... والسرطان ... عبر آلياتٍ تشمل المستحلبات الصناعية، المحليات، والمضافات.
not verbatim – paraphrase. Translation by the project; the Arabic wording is authoritative.
Translation
Artificial sweeteners (aspartame, acesulfame-K, sucralose) are linked to higher cancer and cardiovascular risk.
Origin
- Source status
- Archive editors
- Attribution
- Archive editors (study selection and narrative are the archive's, not necessarily Elawady's)
- Origin
- https://eltayebat.com/rule/ultra-processed-foods/
- Attribution uncertainty
- The archive homepage states that the forbidden-food section is supported by research 'independently of Dr. Diaa's words'. No evidence was found that Elawady himself cited these studies.
- Claimed mechanism
Sweetener toxicity, microbiome effects.
- Claimed health effect
Cancer, cardiovascular disease.
- Population concerned
Adults
- Geographic restriction by Elawady
none found
Scientific assessment
Potentially true – Some evidence points in favour of the statement, but it is not sufficient for a clear judgement.
Certainty of evidence: low – Further research is likely to change the assessment considerably.
1. What was claimed?
Sweeteners raise cancer and heart disease risk.
2. What is demonstrably correct?
Several cohorts link artificial sweeteners and diet drinks with more cardiovascular disease (I-UPF-116, A-UPF-19); one large French cohort also links them with cancer (A-UPF-18). WHO advises against non-sugar sweeteners for weight control and mentions possible undesirable long-term effects (I-SOD-08).
3. What is wrong or exaggerated?
The cancer link is inconsistent: pooled cohorts show no overall association (I-UPF-115). Associations cannot show that sweeteners cause disease; people at higher risk often switch to diet drinks (reverse causation, acknowledged in I-UPF-116). Absolute differences are small.
4. What remains unclear?
Causality.
5. Which studies support it?
A-UPF-18, A-UPF-19, Yin 2021 meta-analysis (I-UPF-116).
6. Which studies contradict it?
Yan 2022 meta-analysis (I-UPF-115): no overall cancer association; JECFA ADI reaffirmed (I-SOD-09).
7. What applies to Germany and Europe?
EU-authorised sweeteners have ADIs; EFSA re-evaluation status not checked in this review.
8. What is known about Egypt?
No Egypt data.
9. What practical conclusion is appropriate?
No firm conclusion; avoiding sweeteners is optional, not medically required.
Assessment details
- Rationale for certainty of evidence
Cardiovascular associations are replicated across cohorts: low-calorie sweetened beverages RR 1.07 (1.05-1.10) per daily serving (I-UPF-116) and total sweeteners HR 1.09 in NutriNet-Sante (A-UPF-19). Cancer: NutriNet-Sante HR 1.13 (A-UPF-18), but a meta-analysis of 25 studies found no overall association (I-UPF-115; European subgroup 1.07). Reverse causation and confounding are likely; IARC found limited evidence for aspartame; JECFA kept the ADI.
- Source quality
Archive lists the NutriNet-Santé studies without interpretation; summary implies causal mechanisms.
- Regional transferability
High (French cohort; EU-authorised sweeteners).
- Individual exceptions
Not applicable.
- Regional scope of the claim
- general (biological/medical)
- Last reviewed
- 26 October 2026 provisional
Scientific evidence in detail
True only under certain conditions – The claim holds only for certain doses, groups of people, preparations or circumstances.
Research question: In adults, is intake of artificial sweeteners (aspartame, acesulfame-K, sucralose) associated with higher cancer and cardiovascular risk?
Research question in detail (PECO)
- Population
- Adults
- Intervention or exposure
- Artificial sweeteners / low-calorie sweetened beverages
- Comparison
- Low/no intake
- Geographic scope
- universal biology
- Outcomes
- Cancer incidence
- Cardiovascular disease
Study results as reported by the authors. Our assessment follows below.
What speaks for the claim?
Diet drinks and heart disease
Yin J et al.. Adv Nutr 2021 · PMID 32696948 · DOI 10.1093/advances/nmaa084 Meta-analysisabstract checkednewly addedMeta-analysis of cohorts: low-calorie sweetened beverages associated with CVD.
- Actual result
- RR 1.07 (1.05-1.10) per serving/day.
- Methodological quality
- moderate
- Relevance
- direct (association)
- Limitations
- Reverse causation.
Artificial sweeteners and heart disease in France
Debras C et al.. BMJ 2022 · PMID 36638072 · DOI 10.1136/bmj-2022-071204 Cohort studyabstract checkedNutriNet-Sante: sweeteners associated with CVD.
- Actual result
- HR 1.09 (1.01-1.18).
- Methodological quality
- moderate
- Relevance
- direct
- Limitations
- Single cohort.
Artificial sweeteners and cancer in France
Debras C et al.. PLoS Med 2022 · PMID 35324894 · DOI 10.1371/journal.pmed.1003950 Cohort studyabstract checkedNutriNet-Sante: sweeteners associated with cancer.
- Actual result
- HR 1.13 (1.03-1.25).
- Methodological quality
- moderate
- Relevance
- direct
- Limitations
- Single cohort.
What speaks against the claim?
Artificial sweeteners and cancer: pooled studies
Yan S et al.. Nutrients 2022 · PMID 36145117 · DOI 10.3390/nu14183742 Meta-analysisabstract checkednewly addedMeta-analysis of 25 studies: no overall association with cancer.
- Actual result
- No overall association; Europe subgroup 1.07 (1.02-1.12).
- Methodological quality
- moderate
- Relevance
- direct
- Limitations
- Subgroups.
IARC and JECFA on aspartame
WHO / IARC / JECFA. WHO news release 2023 Risk assessmentfull text checkedJECFA reaffirmed aspartame ADI 0-40 mg/kg.
- Actual result
- Regulatory.
- Methodological quality
- high (regulatory)
- Relevance
- indirect
What does the overall evidence say?
Editorial assessment based on the studies above – not itself a study result.
Which position is better supported?
Sweeteners/diet drinks are consistently associated with CVD in cohorts; cancer associations are inconsistent; causation unproven.
Why some studies weigh more
Multiple cohorts for CVD; cancer meta-analysis null overall.
Is a causal relationship established? Not established Reverse causation (people at risk choose diet drinks) and confounding.
Remaining uncertainty
Causality; specific sweeteners.
Justified conclusion
'Linked to' is correct for CVD, uncertain for cancer.
Why do studies seem to disagree?
NutriNet-Sante cancer signal vs meta-analysis null: different exposure measurement (detailed records vs beverage questions) and populations.
Does this depend on the country?
- General biological effects
- Biological mechanisms (energy density, eating rate, additives) are universal.
- Eating habits
- Mostly European and US diets studied; Egyptian UPF intake not quantified in the literature found (PubMed search: 2 hits, neither relevant).
- Origin of the food
- Not relevant.
- Contaminants
- Not relevant.
- National production conditions
- Product formulations differ by country.
- Legal rules
- No legal UPF category in EU or (as far as checked) Egypt.
- Actual monitoring data
- No Egyptian monitoring data.
A regional difference that changes the conclusion is not supported by robust data.
Statistical re-check
- CI symmetry and P – Europe 1.07 (1.02-1.12): P about 0.005; mortality 1.13 (1.03-1.25): P about 0.013. recalculated
- CI symmetry – Minor rounding asymmetry. recalculated
Certainty of the overall evidence (GRADE, simplified)
- Main outcome
- CVD and cancer associations with sweeteners
- Starting level
- low (observational studies)
- Reasons for downgrading
- risk of bias (reverse causation)
- inconsistency (cancer)
- Result
- low
Simplified assessment by a single reviewer, following the GRADE approach; not a formal GRADE panel. GRADE rates the body of evidence for one outcome, not individual studies.
Clinical guidelines and official statements checked
- WHO: WHO advises not to use non-sugar sweeteners for weight control (I-SOD-08) (2023) · Original publication
Recommends against non-sugar sweeteners to control body weight or reduce NCD risk; based on a systematic review showing no long-term benefit for body fat; potential undesirable long-term effects noted (conditional recommendation). - WHO / IARC / JECFA: Aspartame hazard and risk assessment results released (I-SOD-09) (2023) · Original publication
IARC classified aspartame as possibly carcinogenic to humans (Group 2B) on limited evidence (hepatocellular carcinoma); JECFA reaffirmed the ADI of 40 mg/kg body weight (page re-fetched 2026-10-26).
Search strategy
Documented literature searches for this review (search strings in the original database syntax).
| Database | Date | Search | Looking for | Hits | Included |
|---|---|---|---|---|---|
| Europe PMC | 26 October 2026 | ("non-sugar sweeteners" OR "artificial sweeteners" OR "non-nutritive sweeteners" OR "low-calorie sweeteners") AND (TITLE:"health effects" OR TITLE:cancer OR TITLE:cardiovascular OR TITLE:mortality) AND (PUB_TYPE:"Meta-Analysis" OR PUB_TYPE:"Systematic Review") AND PUB_YEAR:[2019 TO 2026] | both directions | 28 | |
| Europe PMC | 26 October 2026 | AUTH:"Rios-Leyvraz M" AND sweeteners | both directions | 0 | |
| WHO website | 26 October 2026 | https://www.who.int/news/item/15-05-2023-who-advises-not-to-use-non-sugar-sweeteners-for-weight-control-in-newly-released-guideline (re-fetched) | guidelines | 1 |
How deeply was this checked?
5 linked studies: 1 checked in full text (0 of them with a structured risk-of-bias assessment), 4 on the basis of the abstract, 0 bibliographically only. No formal assessment with two independent reviewers and no independent human expert review has taken place yet.
Last scientific review: 26 October 2026
History of the verdict
- 25 October 2026 · Phase 1 · Initial assessment: Unclear / insufficient evidence (low)
- 26 October 2026 · Phase 4 (systematic evidence review) · Verdict changed: Unclear / insufficient evidence (low) → Potentially true (low)
The previous rating rested on 'associations from one large French cohort'. The CVD association is now replicated across several cohorts (I-UPF-116), and the claim only states a link, not causation; the cancer part remains inconsistent (I-UPF-115). The association claim is therefore possibly true rather than unclear.
New sources: I-UPF-115 I-UPF-116
In plain language
Studies that follow large groups of people find that those who use more artificial sweeteners or diet drinks have somewhat more heart disease. For cancer, the results are mixed. These studies cannot prove that sweeteners are the cause, because people with weight or health problems more often choose diet products. The link is possible but not proven.
Studies on this claim
Studies supporting the claim (1)
-
Diet drinks and heart disease
Yin J et al.. Adv Nutr 2021 · PMID 32696948 · DOI 10.1093/advances/nmaa084Meta-analysisindependent cross-checkabstract checkedEach daily diet drink was linked to 7% more cardiovascular disease across cohort studies; the authors warn this may reflect who drinks them.
Low-calorie sweetened beverages: CVD RR 1.07 per serving/day; authors caution about reverse causation.
Does the study support the specific claim? Partly · Methodological quality: moderate · Certainty of evidence: see overall assessment of the claim
Original publication · Scientific details
Study explained simply
- What did the researchers want to find out?
To link sweetened drinks with heart disease.
- How was the study done?
Meta-analysis of cohorts.
- How many people, animals or samples were studied?
8 articles on diet drinks.
- What was actually found?
Diet and sugary drinks both linked to more CVD.
- How large was the observed effect?
RR 1.07 per serving.
- What do the results mean in everyday life?
Water is the safest choice.
- What are the study's limitations?
Reverse causation.
- What does it say about Elawady's specific claim?
Supports the association in C-UPF-07.
- Do the results apply to Germany and Europe?
Applicable.
- What can explicitly not be concluded from this study?
Cannot prove sweeteners cause CVD.
No study in this group is marked as key.
Studies contradicting or limiting the claim (1)
-
IARC and JECFA on aspartame
WHO / IARC / JECFA. WHO news release 2023Risk assessmentindependent cross-checkfull text checked★ key studyIARC said 'possibly carcinogenic' on limited evidence; JECFA kept the safe daily limit of 40 mg/kg.
Does the study support the specific claim? Partly · Methodological quality: high · Certainty of evidence: see overall assessment of the claim
Original publication · Scientific details
Study explained simply
- What did the researchers want to find out?
Carcinogenic hazard and acceptable intake of aspartame.
- How was the study done?
Joint hazard (IARC) and risk (JECFA) assessment (news release read in full).
- How many people, animals or samples were studied?
Not applicable; General population
- What was actually found?
IARC: Group 2B (limited evidence in humans for hepatocellular carcinoma; limited in animals; limited mechanistic). JECFA: no sufficient reason to change the ADI of 0-40 mg/kg bw; a 70 kg adult would need >9-14 cans/day (200-300 mg each) to exceed it. IARC classifications reflect strength of evidence, not risk at a given exposure.
- How large was the observed effect?
ADI 0-40 mg/kg bw
- What do the results mean in everyday life?
Normal intake is within the safe limit for most people.
- What are the study's limitations?
Limited evidence base
- What does it say about Elawady's specific claim?
- Do the results apply to Germany and Europe?
Applies; aspartame (E951) authorised in EU.
- What can explicitly not be concluded from this study?
That aspartame causes cancer.
No study in this group is marked as key.
Studies with mixed or unclear results (3)
-
Artificial sweeteners and cancer in France
Debras C et al.. PLoS Med 2022 · PMID 35324894 · DOI 10.1371/journal.pmed.1003950Cohort studycited by the Tayebat archiveabstract checkedHigher sweetener consumers had 13% more cancer.
Does the study support the specific claim? Partly · Methodological quality: moderate · Certainty of evidence: see overall assessment of the claim
Original publication · Scientific details
Study explained simply
- What did the researchers want to find out?
Are artificial sweetener intakes associated with cancer?
- How was the study done?
Prospective cohort with brand-level 24-h records.
- How many people, animals or samples were studied?
102,865; 3,358 cancer cases; Adults
- What was actually found?
Higher consumers vs non-consumers: overall cancer HR 1.13 (1.03-1.25); aspartame 1.15 (1.03-1.28); acesulfame-K 1.13 (1.01-1.26); breast cancer (aspartame) 1.22 (1.01-1.48); obesity-related cancers 1.13 (1.00-1.28).
- How large was the observed effect?
HR 1.13 (1.03-1.25)
- What do the results mean in everyday life?
Possible signal.
- What are the study's limitations?
Selection bias, residual confounding, reverse causation (authors)
- What does it say about Elawady's specific claim?
Mixed for C-UPF-07.
- Do the results apply to Germany and Europe?
High.
- What can explicitly not be concluded from this study?
Causation.
-
Artificial sweeteners and heart disease in France
Debras C et al.. BMJ 2022 · PMID 36638072 · DOI 10.1136/bmj-2022-071204Cohort studycited by the Tayebat archiveabstract checkedHigher sweetener intake: 9% higher cardiovascular risk.
Does the study support the specific claim? Partly · Methodological quality: moderate · Certainty of evidence: see overall assessment of the claim
Original publication · Scientific details
Study explained simply
- What did the researchers want to find out?
Are artificial sweeteners associated with CVD?
- How was the study done?
Prospective cohort with repeated 24-h records.
- How many people, animals or samples were studied?
103,388; 1,502 CVD events; Adults, 79.8% women
- What was actually found?
Total sweeteners CVD HR 1.09 (1.01-1.18); cerebrovascular 1.18 (1.06-1.31); aspartame cerebrovascular 1.17 (1.03-1.33); acesulfame-K CHD 1.40 (1.06-1.84); sucralose CHD 1.31 (1.00-1.71).
- How large was the observed effect?
HR 1.09 (1.01-1.18)
- What do the results mean in everyday life?
Small possible signal.
- What are the study's limitations?
Reverse causation; Residual confounding
- What does it say about Elawady's specific claim?
Mixed for C-UPF-07.
- Do the results apply to Germany and Europe?
High.
- What can explicitly not be concluded from this study?
Causation.
-
Artificial sweeteners and cancer: pooled studies
Yan S et al.. Nutrients 2022 · PMID 36145117 · DOI 10.3390/nu14183742Meta-analysisindependent cross-checkabstract checkedAcross 25 studies, sweeteners were not linked to cancer overall; a small link appeared only in European studies.
No overall cancer association; European subgroup HR 1.07; all-cause mortality 1.13 with high heterogeneity.
Does the study support the specific claim? Partly · Methodological quality: moderate · Certainty of evidence: see overall assessment of the claim
Original publication · Scientific details
Study explained simply
- What did the researchers want to find out?
To pool studies on sweeteners and cancer.
- How was the study done?
Meta-analysis of cohorts.
- How many people, animals or samples were studied?
3.7 million people.
- What was actually found?
No overall cancer link; small European signal.
- How large was the observed effect?
Europe 1.07 (1.02-1.12).
- What do the results mean in everyday life?
The cancer link is uncertain.
- What are the study's limitations?
Observational; subgroups.
- What does it say about Elawady's specific claim?
Mixed for C-UPF-07.
- Do the results apply to Germany and Europe?
Applicable.
- What can explicitly not be concluded from this study?
Cannot prove harm or safety.
No study in this group is marked as key.
Regional context
Germany / EU
EU-authorised sweeteners have ADIs; EFSA re-evaluation status not checked in this review.
Egypt
No Egypt data.
What applies in my country?
General scientific assessment
Potentially true Possibly true as an association for cardiovascular disease; the cancer link is inconsistent and causation is unproven.
The following areas of food safety are relevant to this statement:
- Additives and processing
- Controls, imports, recalls, labelling
Choose a country to see the checked information for it.
Limits: legal rules describe what is allowed, not what every single food contains. Measurement data come from samples and are meaningful only together with their method details.
Country of residence or purchase Compare with another country
References
- Intake of Sugar-Sweetened and Low-Calorie Sweetened Beverages and Risk of Cardiovascular Disease: A Meta-Analysis and Systematic Review.. Yin J et al.. Adv Nutr 2021 · PMID 32696948 · DOI 10.1093/advances/nmaa084
- Aspartame hazard and risk assessment results released (IARC and WHO/FAO JECFA, 14 July 2023) — news release. WHO / IARC / JECFA. WHO news release 2023
- Artificial sweeteners and cancer risk: Results from the NutriNet-Santé population-based cohort study.. Debras C et al.. PLoS Med 2022 · PMID 35324894 · DOI 10.1371/journal.pmed.1003950
- Artificial sweeteners and risk of cardiovascular diseases: results from the prospective NutriNet-Santé cohort.. Debras C et al.. BMJ 2022 · PMID 36638072 · DOI 10.1136/bmj-2022-071204
- Can Artificial Sweeteners Increase the Risk of Cancer Incidence and Mortality: Evidence from Prospective Studies.. Yan S et al.. Nutrients 2022 · PMID 36145117 · DOI 10.3390/nu14183742