Every intervention Outliyr has scored for lung and breathing health, ranked by its BioHarmony score for this use case rather than its overall rating. The number beside each name is how well that one thing works for lung and breathing health; the tier beside it is what it is worth once safety, cost and effort are counted across everything else.
35 of 99 evaluated interventions score 3.0+ out of 10 for lung and breathing health · 7 comparisons
In the PANTHEON trial Zheng 2014 (n=1,006), 600 mg twice daily cut COPD exacerbations from 1.49 to 1.16 per patient-year (RR 0.78, 95% CI 0.67 to 0.90). A Cochrane review of 38…
Respiratory scoring is now meaningfully supported by SURMOUNT OSA in obesity related obstructive sleep apnea. The benefit is not a bronchodilator effect. It is mostly weight loss mediated reduction in airway collapsibility…
Lehrer 2004 asthma RCT documented reduced inhaled corticosteroid requirements over 20 weeks of practice. The score stays bounded because HRV Biofeedback evidence for respiratory can depend on breathing cadence, adherence, baseline HRV,…
Kunutsor 2017 followed 1,935 men for 25.6 years and found 4 or more weekly sauna sessions associated with a 41 percent lower risk of incident respiratory disease (hazard ratio 0.59), including pneumonia,…
Cingi 2008 ran a double-blind placebo-controlled trial in allergic rhinitis and found spirulina significantly improving nasal discharge, sneezing, congestion, and itching versus placebo. That is a real, symptom-level outcome rather than a…
Cao 2024 anchors the most relevant signal. Thymosin Alpha-1 fits respiratory when immune modulation is medically relevant and monitored rather than casually guessed. The score stays bounded because the best evidence is…
Dhillon 2024 reports 25-article systematic review; mixed preliminary clinical evidence, heterogeneity, and need for stronger trials. Zhou 2024 points in the same direction, but route, dose, baseline status, and outcome tracking decide…
Justice 2019 IPF pilot found feasibility and physical-function signals with D+Q, not F+Q, with no control group. The score stays bounded because Senolytics evidence for respiratory can depend on age, disease context,…
Historical asthma indication via beta-2 bronchodilation; largely supplanted since the 1980s by beta-2 selective inhalers (albuterol, salmeterol) with vastly better cardiac safety. Bronkaid (25 mg ephedrine sulfate + 400 mg guaifenesin) remains…
Lang 2024 anchors the strongest signal. The existing rationale points to this narrower claim: Zone 2 improves ventilatory efficiency, exercise tolerance, and perceived exertional dyspnea in many users. People with COPD, asthma,…
COPD and fibrosis signals are gene-expression or preclinical rather than clinical GHK-Cu trials. Campbell 2012 reported reversal of an emphysema-related gene signature, and He 2024 adds aged-fibroblast fibrosis context. The score stays…
Weight loss can reduce obesity-linked breathing load, reflux, and sleep-apnea severity, but Semaglutide is not a bronchodilator or lung therapy. Moiz 2024 supports the weight-loss magnitude that makes the indirect pathway plausible.…
Chang 2024 reports Verified audit Track 1 and Track 2 source; supports narrow intradiscal lumbar disc efficacy, especially versus steroid injection at 6 months and similar outcome to microdiscectomy at 18 months.…
The Norwegian 4x4 protocol yields modest respiratory gains, reflected by a 5.0/10 score and supported by the VO2max improvement reported in the original 4 x 4 trial Helgerud 2007. In the Norwegian…
Soh 2024 anchors the most relevant signal. Glycine fits respiratory because glycine participates in sleep signaling, glutathione, collagen, methylation, and nervous-system balance, depending on the endpoint. The score stays bounded because many…
Beyond the common cold, high-dose intravenous vitamin C for acute respiratory failure did not improve organ failure in Fowler 2019. There is supportive interest in vitamin C for pneumonia recovery in deficient…
Whole-Body Vibration may alter breathing patterns during sessions, but no trials have measured lung function, gas exchange, or symptom scores. The anti-inflammatory signals reported in meta-analyses of Whole-Body Vibration focus on systemic…
Early COVID and IPF signals exist but are mostly open-label or small. Di Pierro 2021 reported lower hospitalization with 1000 mg/day quercetin phytosome in 152 outpatients. Di Pierro 2022 improved day 7…
Seawater irrigation is the one area with replicated RCTs. Kosec 2025 randomized 64 athletes to isotonic seawater and saw subjective nasal obstruction improve (NOSE score 5.24 to 2.78 versus 5.24 to 4.61,…
Rapalog immune trials suggest fewer respiratory infections in some older-adult settings, but RTB101 phase 3 and pneumonitis labeling limit confidence.
No direct respiratory evidence was verified. Possible relevance in frailty or critical illness remains indirect and context-specific.
No direct respiratory evidence. Do not infer benefit from general mitochondrial or anti-inflammatory mechanisms.
Hard intervals improve ventilatory efficiency through higher cardiac output and oxygen utilization, but direct respiratory endpoints are secondary to the cardiorespiratory fitness gains.
Rao 2024 shows respiratory off-label hypothesis space around asthma outcomes, but the fetched audit did not expose enough numeric detail for scoring, and no respiratory indication is established. The score remains below…
A single small asthma RCT improved lung function and lowered IL-8, but the evidence is one study in a specific population.
NAC alone has a mucolytic and respiratory track record, but GlyNAC as a combination has no respiratory outcome trial, so the credit is for the NAC component only.
Obstructive sleep apnea is in the TRIUMPH development program and weight loss should reduce apnea burden, but retatrutide-specific peer-reviewed sleep-apnea outcomes are still pending.
HBOT is not a lung-performance intervention. Oxygen toxicity and pneumothorax risk are central contraindication issues per Cooper 2026. Score low despite the oxygen delivery framing, because lung disease can increase risk rather…
Antioxidant support for lung tissue is mechanistic. Direct respiratory RCT evidence is limited.
Asthma and airway inflammation data are mixed. Omega-3 is not a reliable respiratory intervention.
Respiratory results are mixed. Nasal immune and pollutant detox signals exist, but Wise 2016 found no COPD NRF2 target gene, inflammation, antioxidant, or lung function benefit in 89 patients despite confirmed absorption.…
Respiratory scoring is cautious because TRT can worsen obstructive sleep apnea in susceptible men. It is not a respiratory-performance intervention, and untreated severe sleep apnea is a guideline contraindication.
Respiratory use has the largest trial footprint and the most disappointing net result, which is exactly why it sits at the midpoint. The two largest critical-care trials both missed their primary endpoints:…
Cordyceps is a traditional lung tonic and improved ventilatory threshold in Chen 2010, but dedicated respiratory-disease RCTs are low quality and mostly Chinese-language.
Nothing matches those filters.
Monthly out-of-pocket cost at the most accessible legitimate channel, at the dose the score was given for. 12 of 35 are not priced yet; those cells are left blank rather than guessed.
| Intervention | Monthly cost | At dose | How you get it |
|---|---|---|---|
| NAC (N-Acetylcysteine) | $5–$15 | 600 to 1,200 mg/day | Over the counter |
| Tirzepatide | $299–$449 | 2.5 to 5 to 7.5 to 10 to 12.5 to 15 mg | Prescription |
| HRV Biofeedback | $5 | 20 min/session at individual RF (4.5 to 6.5 bpm) | Over the counter |
| Traditional Sauna (Finnish Dry-Heat) | $50 | 15 to 20 minutes at 80 to 100 C | Over the counter |
| Spirulina | $10–$25 | 1 to 4.5 g/day | Over the counter |
| Thymosin Alpha-1 | $100–$400 | 1.6 mg subcutaneous | Prescription |
| Molecular Hydrogen | Not priced yet | ||
| Senolytics | Not priced yet | ||
| Ephedrine | Not priced yet | ||
| Zone 2 Cardio | Not priced yet | Over the counter | |
| GHK-Cu | $30–$100 | 0.5-3% topical serum or cream | Over the counter |
| Semaglutide | $199–$349 | 0.25 mg weeks 1 to 4, 0.5 mg weeks 5 to 8, 1.0 mg weeks 9 to 12, 1.7 mg weeks 13 to 16, 2.4 mg week 17 onward | Prescription |
| Ozone Therapy | $520–$2,600 | 20-30 mcg/mL ozone, roughly 1,000-1,500 mcg total per session | In clinic |
| Norwegian 4×4 | Not priced yet | Over the counter | |
| Glycine | $2–$3 | 3 g oral glycine | Over the counter |
| Vitamin C (Ascorbic Acid) | Not priced yet | ||
| Whole-Body Vibration | $50–$100 | 30 Hz, roughly 0.3g, 10-20 min standing | Over the counter |
| Quercetin | $20–$50 | 200 mg/day | Over the counter |
| Quinton Marine Plasma (Seawater Minerals) | Not priced yet | ||
| Rapamycin | $15–$50 | 3 mg | Prescription |
| Essential Amino Acids | Not priced yet | ||
| Ca-AKG (Calcium Alpha-Ketoglutarate) | $15–$30 | 1 g/day generic Ca-AKG oral | Over the counter |
| Sprinting (Sprint Interval Training) | Not priced yet | ||
| Metformin | $4–$30 | 500 mg with dinner for 1 week, then 500 mg twice daily for 1 week, then increase by 500 mg/week toward 1000 mg twice daily as tolerated | Prescription |
| Fucoidan (Brown Seaweed Polysaccharide) | Not priced yet | ||
| GlyNAC (Glycine + N-Acetylcysteine) | $10–$30 | Glycine and NAC at ~100 mg/kg/day each | Over the counter |
| Glutathione (GSH) | $20–$45 | 1,000 mg/day | Over the counter |
| Retatrutide | $130–$960 | 2 mg, then 4 mg, then 8 mg or 12 mg weekly depending on protocol and tolerability | Research use only |
| Hyperbaric Oxygen Therapy | $3,000–$6,000 | 2.0 ATA for 90 minutes with air breaks | In clinic |
| Astaxanthin | Not priced yet | ||
| Omega-3 | $20–$40 | 1-2 g/day combined EPA+DHA | Over the counter |
| Sulforaphane | $25–$60 | Broccoli sprout extract delivering about 150 micromoles sulforaphane per day | Over the counter |
| TRT (Testosterone Replacement Therapy) | $50–$300 | Clinician-selected formulation at the lowest dose likely to restore physiologic testosterone | Prescription |
| VIP (Vasoactive Intestinal Peptide) | Not priced yet | ||
| Adaptogenic Mushrooms (Reishi, Cordyceps, Chaga) | $15–$40 | 1.5 to 1.8 g/day standardized extract | Over the counter |
Head-to-head reports and category rankings that name a winner on this use case.
Different jobs, same shelf. Quercetin scores 6.5–7.0/10 and curcumin 5.5–6.0/10, and that gap is the liver-safety signal rather than a difference in effect. Curcumin wins joints, inflammatory markers,…
Different liver problems. NAC scores 8.0–8.5/10 and TUDCA 6.5–7.0/10, and NAC wins liver detox 8.0–8.5/10 against 6.5–7.0/10, but its liver evidence is toxin and oxidative damage. TUDCA owns…
NAC scores 8.0–8.5/10 and glutathione 6.0–6.5/10, and that gap is real. NAC is the cheaper upstream precursor with a six-decade clinical record, so start there. Glutathione earns its…
Start tirzepatide. It scores 6.0–6.5/10 against retatrutide's 5.5–6.0/10, and the gap is mostly availability and evidence maturity rather than weaker biology. Retatrutide is not approved anywhere, cannot legally…
Spirulina scores 7.5–8.0/10 and chlorella 6.5–7.0/10, so spirulina is the better default for most people. It leads on blood pressure, blood sugar, inflammation and breathing. Chlorella leads on…
Thymosin alpha-1 scores 7.0–7.5/10 and thymalin 5.5–6.0/10, and the gap is about evidence rather than mechanism. Thymosin alpha-1 is a defined molecule with modern meta-analyses behind it and…
Tirzepatide scores 6.0–6.5/10 and semaglutide 6.0–6.5/10, so the overall scores don't pick a winner. Your reason for taking one does. Tirzepatide wins on weight and body composition. Semaglutide…
NAC (N-Acetylcysteine), at 7.5–8.0 out of 10 for lung and breathing health. In the PANTHEON trial Zheng 2014 (n=1,006), 600 mg twice daily cut COPD exacerbations from 1.49 to 1.16 per patient-year (RR 0.78, 95% CI 0.67 to 0.90).
Of the top-scoring options, Glycine is the least expensive at about $2 a month, scoring 5.0–5.5 out of 10 for lung and breathing health.
35 of the 99 interventions evaluated for lung and breathing health score 3.0 out of 10 or better, which is the cut-off for appearing on this page.
