Best Supplements for Improved Lung Function
Ranked by research evidence. Compare 10 supplements across 14 papers from the biomedical literature, with effect direction, evidence strength, and dose range for each.
Top picks by evidence
- Low evidence4 studies
Across 4 studies, 2 reported beneficial effects (one moderate-sized and statistically significant), while 2 found neutral effects. The predominant effect direction is mixed (beneficial and neutral), with effect sizes ranging from small to moderate. The most-studied population is clinical (pregnant smokers and individuals with asthma or COPD), and the evidence from the highest-quality study (RCT, n=137) showed a moderate beneficial effect at 500 mg/day on lung function, though this finding comes from a single study and was not replicated in larger meta-analyses.
Dose: 500 mg/day (based on the single beneficial RCT); other studies used variable or unreported doses
10 supplements
- LowVitamin CAcross 4 studies, 2 reported beneficial effects (one moderate-sized and statistically significant), while 2 found neutral effects. The predominant effect direction is mixed (beneficial and neutral), with effect sizes ranging from small to moderate. The most-studied population is clinical (pregnant smokers and individuals with asthma or COPD), and the evidence from the highest-quality study (RCT, n=137) showed a moderate beneficial effect at 500 mg/day on lung function, though this finding comes from a single study and was not replicated in larger meta-analyses. · Dose: 500 mg/day (based on the single beneficial RCT); other studies used variable or unreported doses2 beneficial2 neutral4 studies