A recent study published by the journal Scientific Reports found that vitamin D levels below 16 ng/ml were associated with frequent headaches among middle aged men.
A total of 2,601 men between the ages of 42-60 years from the Kuopio Ischaemic Heart Disease Risk Factor Study (KIHD) from eastern Finland were included in the study. The participants were divided into quartiles based off their vitamin D status:
- Quartile 1: < 11.6 ng/ml
- Quartile 2: 11.6-16 ng/ml
- Quartile 3: 16.1-22 ng/ml
- Quartile 4: >22 ng/ml
The participants filled out a questionnaire regarding the occurrence of frequent headaches. Those were considered to have frequent headaches if they developed a headache on a daily or weekly basis.
Here is what the researchers found:
- The average vitamin D status of all participants was 17.4 ng/ml.
- A total of 250 men (9.6%) experienced frequent headaches.
- The average vitamin D status was significantly lower among those who suffer from frequent headaches compared to their healthy counterparts (15.3 ng/ml and 17.6 ng/ml, respectfully; p < 0.001).
- Those in the lowest quartile experienced a 113% increased odds of experiencing frequent headaches compared to those in the highest quartile.
The researchers concluded,
“In this cross-sectional population-based cohort study among middle-aged men from eastern Finland, low serum 25(OH)D concentration was associated with a higher risk of frequent headache.”