CHAMGAP
VERIFIEDPassed the Codex final verification and publication gate. Evidence-verification cutoff: 2026-08-04. AI was used for research and drafting; the existence of all 2 cited sources was verified at the original page, followed by blind grading, adversarial audit, and build validation. Methodology v1.0.
Verdict No. 2136 · Search date 2026-08-04 · Methodology v1.0

Red wine 150 mL/day,
does it really help with Weight and abdominal visceral-fat loss?

30-Second Summary
D
Evidence Grade D · 28 · Safety warning
Red wine did not reduce weight or abdominal visceral fat more than water
The intervention adds 16.9 g of ethanol daily, and alcohol is associated with cancer, liver disease, dependence, and injury. Avoid it during pregnancy and in alcohol-use disorder, and seek clinical advice for liver disease or interacting medicines.
What the
research shows
The grade is D. In a randomized two-year MRI substudy, weight and visceral-fat changes did not differ between red wine and water. The analysis was restricted to 48 completers from the 224-person parent trial, and the paper concluded no promotion of fat accumulation, not weight loss.
What the
ads claim
Composition is not a slimming outcome. The 0.362-1.979 mg/L range was measured in French Pinot Noir and is not a universal red-wine range; it implies about 0.054-0.297 mg in 150 mL. Supplement trials commonly used 150-1,000 mg/day, so those results do not transfer to wine containing ethanol.
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Useful facts when choosing a product

  • The trial wine supplied 16.9 g ethanol, 270.1 mg gallic-acid-equivalent total phenols, and 120 kcal per 150 mL.
  • The 0.362-1.979 mg/L measured in French Pinot Noir yields about 0.054-0.297 mg per 150 mL, roughly 500-18,000 times below 150-1,000 mg supplement doses.
  • The paper concluded no promotion of abdominal adiposity, not fat loss.
ID

Chamgap Semantic Classification Code

Candidate index · review held

F.red-wine.food.weight-and-abdominal-visceral-fat-loss.assess.UNK

Foods and beverages > Red wine > Food consumption > Weight and abdominal visceral-fat loss > Association or change assessment > Unknown

An automated migration candidate, not an issued permanent code; exact claim scope remains under review. This machine-generated migration candidate helps retrieval but is not a permanent assignment. The original verdict ID and URL remain authoritative.

Download semantic index (JSON) · Codebook v1

Gap Measurement · Verdict 2136 · D 28
What advertising claims
What independent, higher-quality research supports
△ GAP
01

What the research actually shows

CASCADE randomized 224 adults to water, white wine, or red wine. Sixty-five red-wine or water participants had baseline MRI, while the two-year analysis included only 48 repeat-MRI completers. Eight white-wine MRI participants were excluded. Image analysis was blinded, but the small sample and completer analysis are two avoidable defects. The European Foundation for the Study of Diabetes funded the work, while Golan Heights Winery and Mey Eden supplied beverages.

02

Why this is classified as D (28)

A 48-person completer MRI substudy found no weight or visceral-fat benefit, and its reported intervals were wide, giving D with 28 points.

Counterpoint. The neutral result in adults with controlled diabetes following a Mediterranean diet does not establish weight-gain effects in every population.

Rejudgment record. Cross-check applied — A 48-completer MRI substudy found no greater weight or visceral-fat loss with red wine than with water

Stored scoring profile
EndpointSSurrogate marker - laboratory or imaging measures
ReplicationR1Single confirmatory trial
IndependenceI1Mixed funding sources
Effect sizeE0Null
PrecisionC0The confidence interval leaves room for benefit

Stored derived and displayed grades match; this is not a current recalculation or validity check (D).

Sub-claim grades by effect

This ingredient is marketed for several effects. A single overall grade blends strong and weak claims together, so each effect is graded separately here. The overall grade reflects the strongest disconfirming or core claim.

Effect (sub-claim)GradeBasis
Weight lossDThere was no between-group difference versus water.
Abdominal visceral-fat lossDMRI changes were similar between groups.
No promotion of abdominal-fat accumulationCThis narrow neutrality conclusion differs from a weight-loss claim.

Cross-check — AI research and Codex final gate

AI was used for research and drafting. Blind grading, adversarial audit, and the methodology boundary rules were then reapplied before Codex performed the final evidence, grade, copy, and build checks. If a grade cannot be narrowed, both evidence positions and their reasons are published.
03

Evidence Table

StudyDesignSampleFundingEndpointResultWeight
Golan R et al. 2017 CASCADE MRI substudyTwo-year randomized parallel-group completer substudy65 with baseline MRI; 48 analyzed at two years (27 red wine, 21 water)European Foundation for the Study of Diabetes funding; beverages supplied in kindWeight and MRI abdominal-fat distributionWeight -1.3±3.9 vs -1.0±4.2 kg, P=0.8; visceral fat -3.0% (-8.0 to 2.0) vs -3.2% (-8.9 to 2.5).Direct randomized evidence limited by a small completer analysis
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Receipt — 2 References

All 2 cited sources were verified for existence at the original page (as of 2026-08-04).

Golan R, Shelef I, Shemesh E, et al. Effects of initiating moderate wine intake on abdominal adipose tissue in adults with type 2 diabetes: a 2-year randomized controlled trial. Public Health Nutr. 2017;20(3):549-555. PMID: 27692023. DOI: 10.1017/S1368980016002597.
checked
Weiskirchen S, Weiskirchen R. Resveratrol: How Much Wine Do You Have to Drink to Stay Healthy? Adv Nutr. 2016;7(4):706-718. PMID: 27422505. DOI: 10.3945/an.115.011627.
checked
Research and draft: AI used · Cross-check: blind grading and adversarial audit
Final verification and publication gate: Codex · Evidence date: 2026-08-04 · Corrections: none

Cite this verdict

Red wine 150 mL/day x weight and abdominal-fat loss Evidence Grade D card
[Chamgap] Red wine 150 mL/day x weight and abdominal-fat loss — Evidence Grade D·28. 2 cited sources checked. Source: https://chamgap.com/en/verdicts/weight/red-wine-weight-visceral-fat-loss/ · CC BY 4.0

CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.

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What this document does and does not do

Chamgap is an information source. It reports what research has and has not confirmed; it does not tell readers what to take or buy. That decision belongs to readers and, when needed, medical or legal professionals. This verdict reflects literature available up to the search date and may change as new research appears. Nothing here is medical advice.