Leafy Greens Boost Lung Health: New Study

Eating leafy greens like spinach and kale may significantly benefit lung health, according to recent research. A study involving over 179,000 participants over ten and a half years found a strong association between higher dietary intake of vitamin K1 and improved rates of chronic obstructive pulmonary disease (COPD).

Individuals consuming the most vitamin K1 had a 16% reduced likelihood of developing COPD. This protective effect was particularly notable among smokers and participants in occupations with higher risk exposure.

While vitamin K1 showed promise, vitamin K2, found in fermented foods and meats, was not associated with lower COPD rates. The study also found no link between either vitamin K form and asthma.

Researchers hypothesize that vitamin K1 activates a protein that helps keep lung tissue flexible and prevents damage. Although the study was observational, it highlights a simple dietary strategy for potentially improving respiratory health.