A finding that vitamin D helps lower blood pressure during winter months has swept headlines all over the world.
We’re here to give you their specific findings!
A research group from Holstebro Hospital in Denmark administered either 3,000 IU/day or placebo to a group of 112 hypertension patients for 20 weeks starting in either October or November. Baseline levels of 25(OH)D were 22.8 ng/ml. After 20 weeks on 3,000 IU/day, the average 25(OH)D level raised to 47.6 ng/ml in the vitamin D group.
The researchers measured before and after:
The researchers found:
People with hypertension may now choose to use vitamin D to help in their care of high blood pressure by supplementing and maintaining better vitamin D blood levels. In this study, they found positive results in lowering blood pressure in supplementing with 3,000 IU/day and reaching vitamin D blood levels of about 50 ng/ml during the winter. Either supplementing with this dose or targeting blood levels around 50 ng/ml is suitable practice.
Make note that the Vitamin D Council recommends 5,000 IU/day because this allows a greater percentage of the population to reach vitamin D levels of 50 ng/ml. This study also highlights the importance of taking extra care in maintaining vitamin D sufficiency in the wintertime in high latitudes, when sun exposure is less frequent and not intense enough to stimulate vitamin D sufficiency.
We also recommend working with your doctor and not stopping your high blood pressure medications. If you’re interested in the use of vitamin D, print this blog out, show them this study and let them know you are interested in using vitamin D and sun exposure as part of your care of high blood pressure.
Larsen T, Mose F, Pedersen E, and Aagaard O. Vitamin D supplementation during winter months reduces central blood pressure in patients with hypertension. 22nd European Meeting on Hypertension and Cardiovascular Protection, 2012.