Researchers tested whether combining breathing exercises with vitamin D supplements could help people with asthma breathe easier. They studied 90 adults with mild to moderate asthma for 12 weeks, dividing them into three groups: one doing breathing exercises plus vitamin D, one doing just breathing exercises, and one taking only vitamin D. The results showed that combining both treatments worked better than either one alone, improving how much air people could breathe in and out. This suggests that doctors might recommend both treatments together to help asthma patients get the most benefit.
The Quick Take
- What they studied: Whether doing breathing exercises and taking vitamin D supplements together helps people with asthma breathe better than doing just one or the other
- Who participated: 90 adults between ages 30 and 55 years old who had mild to moderate asthma and low vitamin D levels
- Key finding: People who did breathing exercises AND took vitamin D supplements improved their breathing the most. Their lungs could hold about 0.44 liters more air after 12 weeks, compared to 0.32 liters for breathing exercises alone and 0.18 liters for vitamin D alone
- What it means for you: If you have asthma, combining breathing exercises with vitamin D supplements may help you breathe better than trying just one treatment. However, talk to your doctor before starting any new supplements or exercise program, especially if you take asthma medications
The Research Details
This was a 12-week study where researchers divided 90 people with asthma into three equal groups. Group A did breathing exercises and took vitamin D supplements. Group B only did breathing exercises. Group C only took vitamin D supplements. Before and after the 12 weeks, doctors measured how much air each person could breathe in and out using special breathing tests. They also checked vitamin D levels in the blood.
The researchers used standard statistical tests to compare results within each group and between groups. They measured lung function using three different tests: how much air the lungs can hold (FVC), how much air comes out in the first second of breathing (FEV1), and the ratio between these two measurements. All participants were adults aged 30-55 with mild to moderate asthma.
This study design is important because it lets researchers see if combining two treatments works better than using them separately. By having three different groups, they could measure the individual effect of breathing exercises, the individual effect of vitamin D, and the combined effect. This type of comparison helps doctors decide what to recommend to patients.
The study had good participation rates, meaning people stuck with the program. No serious side effects were reported. The study was published in a peer-reviewed journal focused on asthma research. However, the study only lasted 12 weeks, so we don’t know if benefits continue longer. The study included only adults aged 30-55, so results may not apply to children or older adults.
What the Results Show
All three groups improved their breathing, but the combination group improved the most. The group doing both breathing exercises and vitamin D supplements increased their lung capacity by 0.44 liters and their one-second breathing volume by 0.44 liters. The breathing-exercises-only group improved by 0.32 and 0.28 liters respectively. The vitamin-D-only group improved the least, with increases of 0.18 and 0.15 liters.
When researchers compared the groups directly, the combination group was clearly better than either treatment alone. The breathing-exercises-only group was better than vitamin D alone. These differences were statistically significant, meaning they were unlikely to happen by chance.
Vitamin D levels in the blood increased significantly in both the combination group and the vitamin-D-only group. Interestingly, vitamin D levels didn’t change in the breathing-exercises-only group, which makes sense since they weren’t taking supplements. All participants tolerated the treatments well with no serious side effects reported.
The study also measured the ratio of air breathed out in one second compared to total air capacity. This ratio improved in all groups, with the combination group showing the largest improvement of 2.7%, compared to 1.4% in the breathing-exercises-only group and 1.0% in the vitamin-D-only group. High compliance rates (people sticking with the program) were reported across all groups, suggesting both treatments were easy for people to follow.
Previous research has shown that breathing exercises help asthma patients, and some studies suggest vitamin D may help reduce asthma symptoms. This study is important because it’s one of the first to test whether combining both treatments works better together than separately. The finding that combination therapy is superior supports the idea that different treatments can work together in complementary ways.
The study only lasted 12 weeks, so we don’t know if improvements continue or fade over time. The study only included adults aged 30-55, so results may not apply to children or older adults. All participants had mild to moderate asthma, so results may not apply to people with severe asthma. The study didn’t compare these treatments to standard asthma medications, so we don’t know how they compare to typical medical treatment. The study was relatively small with only 90 people total.
The Bottom Line
If you have mild to moderate asthma and low vitamin D levels, combining breathing exercises with vitamin D supplements may help improve your lung function. This should be done under doctor supervision. Start with your doctor to confirm you have low vitamin D and to get guidance on the right vitamin D dose. Practice breathing exercises regularly as part of your asthma management plan. Confidence level: Moderate - this is one study showing benefit, but more research is needed.
This research is most relevant for adults aged 30-55 with mild to moderate asthma and low vitamin D levels. People with severe asthma should talk to their doctor about whether these treatments are appropriate for them. Children and older adults should not assume these results apply to them. People already taking asthma medications should check with their doctor before adding supplements or changing their exercise routine.
The study showed improvements after 12 weeks of consistent treatment. Most people would likely see some breathing improvements within 4-6 weeks, with continued improvement over the full 12 weeks. Results depend on doing the breathing exercises regularly and taking vitamin D supplements as directed.
Want to Apply This Research?
- Track daily breathing exercise completion (target: 5-7 days per week) and vitamin D supplement intake. Also track subjective breathing ease using a simple 1-10 scale each week to monitor personal progress.
- Set a daily reminder for vitamin D supplementation at the same time each day (such as with breakfast). Schedule three 15-20 minute breathing exercise sessions per week at consistent times, such as morning, lunch, and evening.
- Weekly check-ins to log breathing exercise completion and supplement adherence. Monthly assessment of breathing ease and any asthma symptoms. Encourage users to share results with their doctor at regular appointments to track objective improvements in lung function tests.
This research suggests that combining breathing exercises with vitamin D supplements may help improve lung function in adults with mild to moderate asthma. However, this study should not replace medical advice from your doctor. Before starting vitamin D supplements or a new exercise program, especially if you have asthma or take asthma medications, consult with your healthcare provider. Results from this 12-week study may not apply to children, older adults, or people with severe asthma. Always follow your doctor’s asthma management plan and report any new symptoms or concerns.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.