Think liquid vitamin D delivered by a nebulizer.
“A common vitamin could help repair damaged lungs when delivered directly to the airways. Oral vitamin D supplements have shown little success in treating chronic lung conditions. However a new approach suggests inhaling the vitamin straight into the lungs may overcome the bodys natural barriers and provide real benefits. For years large clinical trials of swallowed vitamin D pills in patients with chronic obstructive pulmonary disease COPD asthma and cystic fibrosis produced disappointing results. They did not significantly improve lung function or daily quality of life. Researchers from the University of North Carolina School of Medicine and the COPD Foundation believe they now understand the reason. When vitamin D is taken orally it enters the bloodstream and reaches the lungs. An enzyme in the lung blood vessels appears to break down the vitamin before it can reach the airway tissues that need it most. This process explains why increasing blood levels of vitamin D does not lead to better respiratory outcomes. To address this limitation scientists propose delivering vitamin D directly into the airways through inhalation or nebulization. Early studies in animals and cell models suggest that inhaled vitamin D can strengthen airway linings reduce inflammation and help protect against environmental threats. Human clinical trials are still required to confirm safety and determine effective doses. With more than 30 million Americans affected by COPD this targeted method could offer a new low cost way to support lung health and improve treatment options for chronic respiratory diseases.”
[Schichlein, K. D., Jaspers, I., & Drummond, M. B. (2026). Reconsidering Vitamin D Supplementation in Pulmonary Disease: The Case for Targeted Respiratory Delivery. Chronic Obstructive Pulmonary Diseases: Journal of the COPD Foundation. DOI: 0.15326/jcopdf.2026.XXXX]
3:44 PM · Jun 30, 202631.6KViews
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