Vitamin A and D Levels Linked to Better Lung Health and Slower Aging
Higher vitamin A lung health levels may help people with asthma breathe better, according to a new study. Researchers also found that higher vitamin D levels in adults were linked to slower biological aging. The findings suggest these vitamins may support healthier lungs and improve long-term health. However, experts say more research is needed before drawing firm conclusions.
Better lung function
Researchers analyzed data from 1,165 children and 1,041 adults with asthma. They measured blood levels of vitamins A and D alongside lung function and genetic markers linked to aging. In addition, they examined molecules that influence how genes work.
The results showed that children and adults with higher vitamin A levels had stronger lung function. Researchers assessed breathing using standard tests, including forced expiratory volume and forced vital capacity. Adults with vitamin D levels of at least 30 ng/ml also showed better lung performance. As a result, they displayed fewer signs of biological aging than those with lower levels.
Scientists explained that people with asthma often have low vitamin D levels. This deficiency is linked to poorer asthma control, greater steroid use, and more frequent flare-ups. Therefore, maintaining healthy vitamin levels may provide important health benefits.
Gene activity and aging
Researchers also discovered that vitamins A and D may affect gene activity through microRNAs and DNA methylation. These biological processes help regulate inflammation, lung function, and cellular aging. Furthermore, they identified 248 genes connected to both vitamins.
The team believes these findings could support personalized nutrition and future asthma treatments. Even so, experts who reviewed the research urged caution. They said the study only shows an association and cannot prove that the vitamins directly improve lung health or slow aging. Nevertheless, the research offers valuable insight into how nutrition may influence asthma throughout life and highlights the need for larger clinical studies.
