CHAMGAP
VERIFIEDPassed the Codex final verification and publication gate. Evidence-verification cutoff: 2026-09-07. AI was used for research and drafting; the existence of all 2 cited sources was verified (1 access-limited, verified via index/summary and marked), followed by blind grading, adversarial audit, and build validation. Methodology v1.0.
Verdict No. 3001 · Search date 2026-09-07 · Methodology v1.0

Daily 10-minute alternate-nostril breathing after two minutes of abdominal breathing,
does it really help with Lower six-week systolic pressure in treated adults with hypertension?

30-Second Summary
C
Evidence Grade C · 50 · Safety caution
A short adjunctive SBP signal, not evidence for a stand-alone effect or medication replacement
Stop if hyperventilation, dizziness, or distress occurs. This trial does not support reducing or stopping antihypertensive medication.
What the
research shows
Grade C with 50 points. In a trial with 91 randomized and 68 completing, six-week systolic pressure was 139.14±12.5 versus 147.79±12.8 mmHg, P<.01. Attrition was 25.3%, and the intervention was not alternate-nostril breathing alone: two minutes of abdominal breathing preceded ten minutes of Nadi Shodhana.
What the
ads claim
Alternate-nostril breathing alone is portrayed as replacing antihypertensive medication or normalizing autonomic function.
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Useful facts when choosing a product

  • The first two of 12 minutes were abdominal breathing.
  • It was added to ongoing medication and lifestyle care.
  • Sixty-eight of 91 randomized participants completed.
ID

Chamgap Semantic Classification Code

Permanent code issued

X.abdominal-plus-alternate-nostril-breathing.behavioral.resting-systolic-blood-pressure.reduce.standard-care

Behaviors, exposures and policies > Daily 10-minute alternate-nostril breathing after two minutes of abdominal breathing > Behavioral delivery > Lower six-week systolic pressure in treated adults with hypertension > Reduction claim > Standard care

Codex retrospectively verified the principal intervention, delivery, population, endpoint, and comparator from the existing reviewed verdict and issued a permanent semantic code. Secondary outcomes on the page are not transferred as separate claims. The code identifies the intervention and claim; it never contains the evidence grade, score, or safety result.

Download semantic index (JSON) · Codebook v1

⌘

Exact Claim Classification

These independent facets prevent evidence from different forms, routes, populations, effects, and comparators from being mixed.

Intervention classX · Behavior, exposure, or policy
Canonical ingredient or interventionDaily 10-minute alternate-nostril breathing after two minutes of abdominal breathing
Source or part usedPlant source not applicable; specified behavior or training
Formulation or processingDaily 10-minute alternate-nostril breathing after two minutes of abdominal breathing
RouteBehavioral delivery
DoseDaily 10-minute alternate-nostril breathing after two minutes of abdominal breathing
DurationSix weeks
Population91 randomized, 68 completed
Effect or conditionLower six-week systolic pressure in treated adults with hypertension
Primary endpointSix-week SBP, DBP, and HRV
ComparatorStandard care
Duplicate-detection keyabdominal-plus-alternate-nostril-breathing|behavioral|91 randomized, 68 completed|resting-systolic-blood-pressure|Six weeks
Gap Measurement · Verdict 3001 · C 50
What advertising claims
What independent, higher-quality research supports
△ GAP
01

What the research actually shows

Adults with hypertension received standard management with or without the breathing program. The program combined two minutes of abdominal breathing with ten minutes of Nadi Shodhana; other pranayama or yoga programs were excluded.

02

Why this is classified as C (50)

One short SBP signal is limited by a surrogate endpoint, combined intervention, 25.3% attrition, small sample, and uncertain prespecification, giving C with 50 points.

Counterpoint. DBP was null between groups, and acute HRV studies were not counted as replication of six-week pressure effects.

Rejudgment record. Cross-check applied — Distinguished final SBP from adjusted change, DBP from HRV, and alternate-nostril breathing alone from the combined abdominal-breathing protocol

Stored scoring profile
EndpointSSurrogate marker - laboratory or imaging measures
ReplicationR1Single confirmatory trial
IndependenceI2Decisive evidence is publicly or non-profit funded
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
Six-week SBP reduction as an adjunctCFinal values differed, but adjusted effect and CI were unavailable.
Improved DBP or HRVDDBP was null and HRV varied by metric and study.
✓

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
Mittal G et al. 2025Randomized adjunct-to-standard-management trial91 randomized, 68 completedReported public/academic supportSix-week SBP, DBP, and HRVSBP 139.14±12.5 vs 147.79±12.8, P<.01; DBP P>.05Key six-week trial
Ghiya S et al. 2023Acute comparison with another pranayama100 participantsAcademic researchAcute HRVBetween-group HRV was nullIndirect HRV qualifier
§

Receipt — 2 References

Of 2 cited sources, 1 had limited original-page access (blocked or summary-only) and were verified via index/summary, marked partial; the rest were verified at the original page. As of 2026-09-07.

Mittal G, et al. An Exploratory Randomised Trial to Assess the Effect of Nadi Shodhan Pranayama as an Adjunct Versus Standard Non-pharmacological Management in Hypertensives. Ann Neurosci. 2025. PMID: 40242728. PMCID: PMC11996816. DOI: 10.1177/09727531251318810.
partial
Ghiya S, et al. Comparison of the effects of Nadi Shodhana Pranayama and Bhramari Pranayama on heart rate variability. J Ayurveda Integr Med. 2023. PMID: 37499590. PMCID: PMC10388195. DOI: 10.1016/j.jaim.2023.100774.
checked
Research and draft: AI used · Cross-check: blind grading and adversarial audit
Final verification and publication gate: Codex · Evidence date: 2026-09-07 · Corrections: none
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Cite this verdict

Adjunct Alternate-Nostril Breathing for Six-Week Systolic Pressure—Combined Breathing and High Attrition Evidence Grade C card
[Chamgap] Adjunct Alternate-Nostril Breathing for Six-Week Systolic Pressure—Combined Breathing and High Attrition — Evidence Grade C·50. 2 cited sources checked. Source: https://chamgap.com/en/verdicts/heart/alternate-nostril-breathing-adjunct-resting-systolic-pressure/ · 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.
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