Vitamin D3 supplementation improved exercise tolerance in deficient male COPD patients in small RCT
Vitamin D supplements linked to better walking ability in men with COPD and low vitamin D
A 26-week double-blind RCT in 40 vitamin D3-deficient male COPD patients found that oral vitamin D3 supplementation (80,000 IU/week then adj…
Men with COPD and low vitamin D levels walked farther and felt less breathless after taking supplements for six months.