Vitamin D improves lung health in those with COPD
Doctors said that people with COPD typically are deficient in vitamin D because they don’t get outdoors much and exercise little, and that there is a link between low vitamin D and weak muscles.

In one lung rehabilitation study, 50 people, average age 67, with a history of COPD flare-ups took 100,000 IU of vitamin D per month (equal to 3,333 IU per day) or a placebo.

After three months, while the placebo group did not change, the vitamin D group saw levels of vitamin D increase from 22 to 53 ng/mL.

The vitamin D group utilized more oxygen while the placebo group utilized less, and walking distance increased 118 feet in six minutes for vitamin D compared to increasing 36 feet for placebo.

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