CHAMGAP
VERIFIEDPassed the Codex final verification and publication gate. Evidence-verification cutoff: 2026-08-03. AI was used for research and drafting; the existence of all 1 cited sources was verified at the original page, followed by blind grading, adversarial audit, and build validation. Methodology v1.0.
Verdict No. 2067 · Search date 2026-08-03 · Methodology v1.0

Cayenne powder,
does it really help with Reduced appetite and calorie intake at one meal?

30-Second Summary
C
Evidence Grade C · 46 · Safety caution
Lower meal intake appeared only among people who did not regularly eat spicy food
Cayenne can cause oral burning, heartburn, and gastrointestinal discomfort. People with troublesome gastrointestinal symptoms should reduce or avoid it.
What the
research shows
The grade is C. In a 25-person acute crossover trial, 1 g reduced intake at the next meal by an average 66 kcal among 12 people who did not regularly eat spicy food, but not among regular users. Hunger, fullness, and prospective consumption did not change overall, and body weight was not measured long term.
What the
ads claim
One gram is about 0.56 teaspoon, 0.19 tablespoon, or 4 to 5 pinches, a culinary amount. One lower-calorie meal in a subgroup is not evidence of long-term weight loss.
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Useful facts when choosing a product

  • The tested commercial cayenne measured 1.995 mg capsaicin per gram and 53,800 SHU.
  • One gram is about 0.56 teaspoon, 0.19 tablespoon, or 4 to 5 pinches.
  • Verdict 1448 is D with 31 points and concerns long-term weight outcomes from capsaicin or cayenne extracts; this verdict concerns ground pepper at one meal.
ID

Chamgap Semantic Classification Code

Candidate index · review held

F.one-gram-of-commercial-ground-cayenne-pepper-added-to-food.oral.appetite-and-calorie-intake-at-one-meal.reduce.addon

Foods and beverages > One gram of commercial ground cayenne pepper added to food > Oral > appetite and calorie intake at one meal > Reduction claim > Added intervention on common background care

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 2067 · C 46
What advertising claims
What independent, higher-quality research supports
△ GAP
01

What the research actually shows

Ludy and Mattes 2011 used a randomized six-visit crossover design in 25 healthy lean adults: 13 regular spicy-food users and 12 nonusers. Commercial McCormick cayenne was analyzed at 1,995 micrograms capsaicin per gram and 53,800 SHU. Comparing 1 g with no pepper, ad libitum intake 270 minutes later fell by 66 kcal in nonusers but was unchanged in users. No registration or prespecified primary endpoint was identified. Funding included an NIH training grant and McCormick Science Institute, an organization established by a spice company.

02

Why this is classified as C (46)

Direct testing of a culinary amount is offset by a 25-person single-meal study, a nonuser-only signal, and divergent appetite outcomes, giving C with 46 points.

Counterpoint. Temperature, energy expenditure, and respiratory quotient do not substitute for appetite or body-weight outcomes.

Rejudgment record. Cross-check applied — The nonuser-only single-meal intake reduction was weighed against null overall appetite measures and null findings in regular users

Stored scoring profile
EndpointPSymptom or function itself is the target - including patient reports and performance tests
ReplicationR1Single confirmatory trial
IndependenceI1Mixed funding sources
Effect sizeEXThe clinical size of the effect could not be judged

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

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
Reduced calorie intake at one mealCA 66-kcal reduction appeared only in nonusers.
General appetite suppressionDOverall hunger, fullness, and prospective intake did not differ.

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
Ludy MJ and Mattes RD. 2011Randomized six-visit acute crossover trialAll 25 analyzed: 13 regular users and 12 nonusersNIH grant 5T32DK076540 and McCormick Science InstituteAppetite ratings over 270 minutes and ad libitum meal energy intakeWith 1 g versus none, nonuser intake fell by 66 kcal, F(1,23)=5.436, P=0.029; intake in users and overall hunger, fullness, and prospective intake were null.Acute subgroup signal
§

Receipt — 1 References

All 1 cited sources were verified for existence at the original page (as of 2026-08-03).

Ludy MJ, Mattes RD. The effects of hedonically acceptable red pepper doses on thermogenesis and appetite. Physiol Behav. 2011;102(3-4):251-258. PMID: 21093467. DOI: 10.1016/j.physbeh.2010.11.018.
checked
Research and draft: AI used · Cross-check: blind grading and adversarial audit
Final verification and publication gate: Codex · Evidence date: 2026-08-03 · Corrections: none

Cite this verdict

Cayenne powder x appetite and calorie intake Evidence Grade C card
[Chamgap] Cayenne powder x appetite and calorie intake — Evidence Grade C·46. 1 cited sources checked. Source: https://chamgap.com/en/verdicts/weight/cayenne-powder-appetite-calorie-intake/ · 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.