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Published on August 2, 2019

Allergic rhinitis (AR), also known as hay fever, is a group of symptoms affecting the eyes and nose that are associated with an allergic response to particles such as dust, pollen, and animal dander. Symptoms are often associated with seasonal allergies, but can also be suffered year-round. Between 10-30% of the population world-wide suffers from AR.

What can be done to address AR symptoms?

Symptoms of AR often include an itchy, runny nose, sneezing, nasal congestion, post-nasal drip, and watery, itchy eyes. People with AR often rely on antihistamine medications to decrease their symptoms, such as Zyrtec (cetirizine), Benadryl (diphenhydramine) and Claritin (loratadine).

Researchers in Germany recently published findings from a double-blind controlled clinical trial showing the combined effect of one of these antihistamine medications (Cetirizine) with vitamin D supplementation. They enrolled 80 adults with confirmed allergies who also presented with vitamin D deficiency (defined as 10-20 ng/ml). Participants answered a questionnaire to rate the severity of symptoms; all participants were given cetirizine, while half received 50,000 IU of vitamin D on a weekly basis, and the other half received a placebo.

What did the study find?

The mean vitamin D serum level for all participants at baseline was around 14 ng/ml. After 8 weeks of treatment, the group receiving medication plus vitamin D had a mean serum level of 24 ng/ml and experienced a significant decrease in AR symptoms, especially runny, itchy nose, sneezing, and post-natal drip, compared to the medication only group who received no vitamin D and had a final mean vitamin D serum level of 15 ng/ml.

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By the end of the 8 weeks of treatment, the medication only group experienced an 8% decrease in AR symptoms, while the group who received medication plus vitamin D experienced a 29% reduction in symptoms.

Are you deficient in vitamin D?

Testing your vitamin D level regularly and taking daily steps to keep it at a target level of 40-60 ng/ml (100-150 nmol/L) is important for all stages of health. Find out your levels today! Log on to the shop (click the link below) to get your tests and see for yourself if your levels can be improved.

Make sure you track your results before and after, about every 6 months!

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How can I track my vitamin D intake and levels over time?

To help you track your supplement use and nutrient levels, GrassrootsHealth has created an online tracking system called myData-myAnswers. For each specific supplement, you can track what days you take it, how much, and many other details. This will help you know your true supplemental intake and what patterns of use work for you to reach and maintain optimum nutrient levels. Check it out today!

How Can You Use this Information for YOUR Health?

Having and maintaining healthy vitamin D and other nutrient levels can help improve your health now and for your future. Measuring is the only way to make sure you are getting enough!

STEP 1 Order your at-home blood spot test kit to measure vitamin D and other nutrients of concern to you, such as omega-3s, magnesium, essential and toxic elements (zinc, copper, selenium, lead, cadmium, mercury); include hsCRP as a marker of inflammation or HbA1c for blood sugar health

STEP 2 Answer the online questionnaire as part of the GrassrootsHealth study

STEP 3 Using our educational materials and tools (such as our dose calculators), assess your results to determine if you are in your desired target range or if actions should be taken to get there

STEP 4 After 3-6 months of implementing your changes, re-test to see if you have achieved your target level(s)

Enroll in D*action and Build Your Custom Test Kit!

Memorial Day Sale! Save 15% off orders of $100 or more with code MEMORIAL24. Not valid on the T1D Prevention Test Kit. Sale ends 5/28/24 at 11:59pm PST.

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