Study analysis · Obesity (Silver Spring, Md.) · 2011
Drinking soda could be making your belly fat worse—even if you don't gain weight.
Soda makes fat gather around your organs, even if your weight stays the same.
Overview
What the study found
The study in plain English — the bottom line, every takeaway we extracted, and what to do with them.
In simple terms
This study looked at what people ate and how much belly fat they had, all at the same time. It found that people who drank more sugary drinks tended to have more fat around their organs, but it doesn't prove that the drinks caused the fat — maybe people with more fat just like sugary drinks more.
What’s the bottom line?
This study looked at what people drank and how their belly fat was distributed using special scans.
How strong is this study?
The study used fancy machines (MRI) to measure fat accurately and tried to account for things like age and exercise, which is good. But it only asked people what they ate (which people sometimes get wrong) and only looked at one group of people — so we can't be totally sure the results apply to everyone.
0 / 100
- COI disclosureconflicts of interest not disclosed
- Data availabilitydata not shared
- Code availabilitycode not shared
25 / 100
- Randomizationnot randomized
- Blindingblinding unclear
- Control groupno control group
- Sample size (n=791)+19.6/20
- Follow-upno follow-up reported
100 / 100
54 / 100
- P-values+15/15
- Effect size+20/20
- Confidence intervalsno confidence intervals
- Pre-registrationnot pre-registered
Each component is scored out of 100 and then capped by the study design — a case series cannot reach the ceiling a randomised trial can, however well it is reported.
Where it sits
RCT reviewsReviews of RCTs (Meta-analyses)
Max 100Randomized TrialsRandomized Trials
Max 90Reviews of Cohort StudiesReviews of Cohort Studies
Max 85Cohort StudiesCohort Studies
Max 72Reviews of Case-Control StudiesReviews of Case-Control Studies
Max 63Case-Control StudiesCase-Control Studies
Max 58Cross-Sectional & Case SeriesCross-Sectional & Case Series
Max 50Expert OpinionExpert Opinion
Max 542 / 100
Probability of being correct
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.
This design cannot establish causation — the findings describe an association, not a cause. This is a cross-sectional study, which measures exposure and outcome at the same time, making it impossible to determine whether sugar-sweetened beverage consumption preceded changes in visceral fat or vice versa. Confounding factors like diet, activity, or lifestyle habits could explain the observed associations.
No Conflicts
No conflicts of interest identified
No conflicts of interest were disclosed, and no funding sources were declared; the study appears independently conducted.
The study explicitly states 'The authors have no relevant conflict of interest to disclose.' No funding sources are identified, and there is no indication of industry involvement in study design, analysis, or publication. All analyses were conducted using standard statistical methods (SAS) with appropriate adjustments for confounders.
Key takeaways
- 01
People who drank more sugary sodas had more fat around their organs (visceral fat), even if they weren't heavier overall.
- 02
People who drank diet sodas were heavier and had bigger waists, but didn't have more organ fat.
- 03
Yes — having more fat around organs is linked to higher risk of diabetes and heart disease, even if your weight is normal.
Surprising findings
- Sugar-sweetened beverages increased visceral fat without changing BMI or total body fat.Everyone assumes weight gain = more fat everywhere. This shows sugar can specifically re-route fat to your organs without making you heavier on the scale.
- Diet beverages were linked to higher BMI and waist size—but not to visceral fat.Most assume diet drinks are 'safe' or even protective. This shows they’re linked to overall fat gain, but not the most dangerous type—raising new questions about their role in obesity.
Practical takeaways
Replace one sugar-sweetened beverage per day with water, unsweetened tea, or sparkling water to reduce visceral fat accumulation.
This study only shows association, not causation. Other lifestyle factors may contribute, and results only apply to non-Hispanic white adults.
medium confidenceIf you drink diet soda, don’t assume you’re avoiding metabolic risk—monitor your waist circumference and overall body fat, not just weight.
Diet soda may be linked to other unhealthy behaviors or weight-loss attempts, so it’s not necessarily the drink itself causing harm.
low confidenceWhy this study matters
Soda Changes Fat Location, Not Just Amount
People who drank one or more sugar-sweetened beverages a day had 44.4% visceral fat (VAT%) in men and 24.5% in women—significantly higher than non-consumers (40.9% and 22.1%, respectively)—despite no difference in BMI or total body fat. This means sugar doesn’t just make you heavier; it reshapes where fat is stored.
You can look 'normal' on the scale but still be at higher risk for diabetes and heart disease because your organs are surrounded by dangerous fat. This flips the script on weight as the only health indicator.
Diet Soda Makes You Fatter—But Not in the Dangerous Way
Diet beverage drinkers had higher BMI, waist circumference, and total body fat—but no increase in visceral fat (VAT%). This suggests diet drinks may be linked to overall weight gain, but not the organ-wrapping fat that’s most harmful.
It’s counterintuitive: diet soda drinkers are heavier, but not necessarily more metabolically at risk. This challenges the assumption that all 'fat gain' is equally dangerous.
It Happens to Everyone—Men, Women, Young and Old
The link between sugary drinks and visceral fat was consistent across both sexes and all age groups (18–43 and 44–69). For example, in older adults, VAT% rose from 34.2% to 38.0% with higher intake (p=0.039).
This isn’t just a problem for middle-aged men. Young women, older men, everyone—sugar targets visceral fat regardless of age or gender.
Want the whole report?
Detailed mode opens the full scientific breakdown — every score component, the methodology, conflicts of interest, the evidence analysis behind each claim, and the raw study data.
Overview
What the study found
The study in plain English — the bottom line, every takeaway we extracted, and what to do with them.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
This study looked at what people drank and how their belly fat was distributed using special scans.
Research results
People who drank more sugary sodas had more fat around their organs (visceral fat), even if they weren't heavier overall. People who drank diet sodas were heavier and had bigger waists, but didn't have more organ fat.
What this means - more context
Yes — having more fat around organs is linked to higher risk of diabetes and heart disease, even if your weight is normal.
To examine whether sugar-sweetened and diet beverage consumption is associated with regional abdominal adiposity, specifically visceral adipose tissue (VAT), in non-Hispanic white adults.
Higher sugar-sweetened beverage (SSB) intake was associated with increased waist circumference and visceral-to-subcutaneous fat ratio (VAT%) without changes in BMI or total body fat. Diet beverage intake was linked to higher BMI, waist circumference, and total body fat, but not to VAT%. These associations held after adjusting for age, sex, physical activity, smoking, education, and dietary patterns.
Methods Used
Cross-sectional analysis of 791 non-Hispanic white adults aged 18–70; beverage intake assessed via food frequency questionnaire; abdominal adiposity measured by MRI; multivariate models adjusted for age, sex, height, physical activity, smoking, education, fiber, dairy, red meat, alcohol, and total energy intake.
Main Finding
Increased SSB consumption was associated with higher VAT% (visceral fat proportion) independent of BMI and total body fat; for example, men consuming ≥1 SSB/day had VAT% of 44.4% vs. 40.9% in non-consumers, and women had 24.5% vs. 22.1%, with significant linear trends (p trend=0.03 for women). Diet beverages showed no association with VAT%.
Confidence Level
Moderate — findings are statistically significant and adjusted for multiple confounders, but cross-sectional design limits causal inference and self-reported beverage data may introduce recall bias.
Study Flags
Red Flags
- •Cross-sectional design — cannot prove causation
- •Self-reported beverage intake — potential recall bias
- •Limited to non-Hispanic white adults — limits generalizability
Surprising Findings
Sugar-sweetened beverages increased visceral fat without changing BMI or total body fat.
Everyone assumes weight gain = more fat everywhere. This shows sugar can specifically re-route fat to your organs without making you heavier on the scale.
Practical Takeaways
Replace one sugar-sweetened beverage per day with water, unsweetened tea, or sparkling water to reduce visceral fat accumulation.
RCT reviewsReviews of RCTs (Meta-analyses)
Max 100Randomized TrialsRandomized Trials
Max 90Reviews of Cohort StudiesReviews of Cohort Studies
Max 85Cohort StudiesCohort Studies
Max 72Reviews of Case-Control StudiesReviews of Case-Control Studies
Max 63Case-Control StudiesCase-Control Studies
Max 58Cross-Sectional & Case SeriesCross-Sectional & Case Series
Max 50Expert OpinionExpert Opinion
Max 542 / 100
Probability of being correct
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.
Human Cross-Sectional
Subject
Moderate probability
on the GRADE evidence scale
This study looked at what people ate and how much belly fat they had, all at the same time. It found that people who drank more sugary drinks tended to have more fat around their organs, but it doesn't prove that the drinks caused the fat — maybe people with more fat just like sugary drinks more.
No conflicts of interest were detected in this study. No score impact.
Strengths
- Used MRI to measure visceral adipose tissue accurately
- Adjusted for multiple potential confounders (age, sex, activity, smoking, education, diet)
- Large sample size for a cross-sectional imaging study (n=791)
Weaknesses
- Cross-sectional design prevents determination of temporal sequence
- Self-reported dietary data prone to recall and social desirability bias
- Lack of blinding in dietary assessment and outcome measurement
Methodology
Evidence Keywords
Statistical Reporting
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
This study looked at what people drank and how their belly fat was distributed using special scans.
Research results
People who drank more sugary sodas had more fat around their organs (visceral fat), even if they weren't heavier overall. People who drank diet sodas were heavier and had bigger waists, but didn't have more organ fat.
What this means - more context
Yes — having more fat around organs is linked to higher risk of diabetes and heart disease, even if your weight is normal.
To examine whether sugar-sweetened and diet beverage consumption is associated with regional abdominal adiposity, specifically visceral adipose tissue (VAT), in non-Hispanic white adults.
Higher sugar-sweetened beverage (SSB) intake was associated with increased waist circumference and visceral-to-subcutaneous fat ratio (VAT%) without changes in BMI or total body fat. Diet beverage intake was linked to higher BMI, waist circumference, and total body fat, but not to VAT%. These associations held after adjusting for age, sex, physical activity, smoking, education, and dietary patterns.
Methods Used
Cross-sectional analysis of 791 non-Hispanic white adults aged 18–70; beverage intake assessed via food frequency questionnaire; abdominal adiposity measured by MRI; multivariate models adjusted for age, sex, height, physical activity, smoking, education, fiber, dairy, red meat, alcohol, and total energy intake.
Main Finding
Increased SSB consumption was associated with higher VAT% (visceral fat proportion) independent of BMI and total body fat; for example, men consuming ≥1 SSB/day had VAT% of 44.4% vs. 40.9% in non-consumers, and women had 24.5% vs. 22.1%, with significant linear trends (p trend=0.03 for women). Diet beverages showed no association with VAT%.
Confidence Level
Moderate — findings are statistically significant and adjusted for multiple confounders, but cross-sectional design limits causal inference and self-reported beverage data may introduce recall bias.
Study Flags
Red Flags
- •Cross-sectional design — cannot prove causation
- •Self-reported beverage intake — potential recall bias
- •Limited to non-Hispanic white adults — limits generalizability
Surprising Findings
Sugar-sweetened beverages increased visceral fat without changing BMI or total body fat.
Everyone assumes weight gain = more fat everywhere. This shows sugar can specifically re-route fat to your organs without making you heavier on the scale.
Practical Takeaways
Replace one sugar-sweetened beverage per day with water, unsweetened tea, or sparkling water to reduce visceral fat accumulation.
RCT reviewsReviews of RCTs (Meta-analyses)
Max 100Randomized TrialsRandomized Trials
Max 90Reviews of Cohort StudiesReviews of Cohort Studies
Max 85Cohort StudiesCohort Studies
Max 72Reviews of Case-Control StudiesReviews of Case-Control Studies
Max 63Case-Control StudiesCase-Control Studies
Max 58Cross-Sectional & Case SeriesCross-Sectional & Case Series
Max 50Expert OpinionExpert Opinion
Max 542 / 100
Probability of being correct
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.
Human Cross-Sectional
Subject
Moderate probability
on the GRADE evidence scale
This study looked at what people ate and how much belly fat they had, all at the same time. It found that people who drank more sugary drinks tended to have more fat around their organs, but it doesn't prove that the drinks caused the fat — maybe people with more fat just like sugary drinks more.
No conflicts of interest were detected in this study. No score impact.
Strengths
- Used MRI to measure visceral adipose tissue accurately
- Adjusted for multiple potential confounders (age, sex, activity, smoking, education, diet)
- Large sample size for a cross-sectional imaging study (n=791)
Weaknesses
- Cross-sectional design prevents determination of temporal sequence
- Self-reported dietary data prone to recall and social desirability bias
- Lack of blinding in dietary assessment and outcome measurement
Methodology
Evidence Keywords
Statistical Reporting
Scoring
How strong is this study?
The study used fancy machines (MRI) to measure fat accurately and tried to account for things like age and exercise, which is good. But it only asked people what they ate (which people sometimes get wrong) and only looked at one group of people — so we can't be totally sure the results apply to everyone.
0 / 100
- COI disclosureconflicts of interest not disclosed
- Data availabilitydata not shared
- Code availabilitycode not shared
25 / 100
- Randomizationnot randomized
- Blindingblinding unclear
- Control groupno control group
- Sample size (n=791)+19.6/20
- Follow-upno follow-up reported
100 / 100
54 / 100
- P-values+15/15
- Effect size+20/20
- Confidence intervalsno confidence intervals
- Pre-registrationnot pre-registered
Each component is scored out of 100 and then capped by the study design — a case series cannot reach the ceiling a randomised trial can, however well it is reported.
Where it sits
RCT reviewsReviews of RCTs (Meta-analyses)
Max 100Randomized TrialsRandomized Trials
Max 90Reviews of Cohort StudiesReviews of Cohort Studies
Max 85Cohort StudiesCohort Studies
Max 72Reviews of Case-Control StudiesReviews of Case-Control Studies
Max 63Case-Control StudiesCase-Control Studies
Max 58Cross-Sectional & Case SeriesCross-Sectional & Case Series
Max 50Expert OpinionExpert Opinion
Max 542 / 100
Probability of being correct
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.
This design cannot establish causation — the findings describe an association, not a cause. This is a cross-sectional study, which measures exposure and outcome at the same time, making it impossible to determine whether sugar-sweetened beverage consumption preceded changes in visceral fat or vice versa. Confounding factors like diet, activity, or lifestyle habits could explain the observed associations.
No Conflicts
No conflicts of interest identified
No conflicts of interest were disclosed, and no funding sources were declared; the study appears independently conducted.
The study explicitly states 'The authors have no relevant conflict of interest to disclose.' No funding sources are identified, and there is no indication of industry involvement in study design, analysis, or publication. All analyses were conducted using standard statistical methods (SAS) with appropriate adjustments for confounders.
Standing
Who’s using this study?
The videos and claims on this site that lean on this study, and the researchers who wrote it.
1 video from Thomas DeLauer cite this study, drawing 1 claim from it.
- Strong evidence
At least some randomized or controlled trials support this claim.
Evidence
Authored by
5 researchersIf this is your work, this is how we attribute it on Fit Body Science. Andrew Odegaard is listed as the lead author.