
Leafy greens linked to lower COPD risk, new study suggests
In a large observational study of 179,062 people over about 10.5 years, higher vitamin K1 intake—mainly from leafy greens like spinach and kale—was associated with better lung function and a 16% lower COPD risk, with stronger effects among smokers and those in high-risk occupations; vitamin K2 showed no link. While not proving causation, researchers say increasing leafy greens could be a practical way to boost lung health by raising vitamin K1 intake.




