We are independent & ad-supported. We may earn a commission for purchases made through our links.

Advertiser Disclosure

Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.

How We Make Money

We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently from our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Are the Signs of an Allergic Reaction to Vitamin D?

Nicole Madison
Updated Mar 03, 2024
Our promise to you
TheHealthBoard is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At TheHealthBoard, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

The signs of an allergic reaction to vitamin D often include asthma symptoms and other common allergy signs, such as itchy eyes and a runny nose. An individual may also develop a condition that affects the skin, such as hives, rashes, or eczema, because of this type of allergy. In extreme cases, the sufferer could have a severe reaction that includes facial or throat swelling, lowered blood pressure, extreme difficulty breathing, and dizziness or fainting.

The most common signs of an allergic reaction to vitamin D are those that involve the respiratory system. Often, an individual with this type of allergy develops asthmatic symptoms upon exposure: he may wheeze, develop labored breathing, and notice that his chest feels unusually tight. Shortness of breath and chest pain are also associated with this type of reaction. Such symptoms can develop even in people who do not have a history of asthma.

Some people develop signs of hay fever when they are exposed to vitamin D. For example, an affected person may develop itchy eyes and a runny nose or experience nasal congestion. Some people also develop itching in odd places, such as the ears and throat. Coughing and post-nasal drip may become problems as well. Additionally, some might notice a buildup of uncomfortable pressure in their sinuses.

In some cases, an allergic reaction to vitamin D can cause hives or itchy rashes to develop on the skin, as well as redness and inflammation. This type of allergy may also contribute to the development of eczema, a chronic skin condition marked by dry areas of skin that can appear scaly or leather-like. In some cases, skin affected by eczema will develop burning sensations, ooze fluid, or bleed as well.

Sometimes a person suffers a severe allergic reaction that can prove life threatening. This type of reaction often is accompanied by such symptoms as throat, mouth, or face swelling; hives; difficulty breathing; and heart rate changes. In some cases, a person may also experience dizziness, fainting, or a significantly lowered blood pressure. Any allergic reaction may need to be checked by a medical professional, but a severe reaction usually requires emergency medical attention.

TheHealthBoard is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Nicole Madison
By Nicole Madison
Nicole Madison's love for learning inspires her work as a TheHealthBoard writer, where she focuses on topics like homeschooling, parenting, health, science, and business. Her passion for knowledge is evident in the well-researched and informative articles she authors. As a mother of four, Nicole balances work with quality family time activities such as reading, camping, and beach trips.

Discussion Comments

By anon1005520 — On Sep 15, 2021

Go sit in the sun for 30 minutes each day for natural Vitamin D!

By anon1004431 — On Feb 09, 2021

Nice article. It fits my mother's condition. She has very low Vitamin D, 25 Hydroxy around 23. It should e 75 -225 nmol/l

Whenever she consumes Vitamin D in capsules or in powder form, she develops itchy eyes and running nose. Strangely doctors still do not suggest any alternative.

Can you suggest some alternatives please!

By anon925723 — On Jan 13, 2014

I know a lady who is 30 years old who had severe diarrhea after a course of oral Vitamin D3 treatment for severe Vitamin D3 deficiency without other allergic features. I do not know if other vitamins, like Vitamin D2, will cause the same side effects for this lady.

Nicole Madison

Nicole Madison

Nicole Madison's love for learning inspires her work as a TheHealthBoard writer, where she focuses on topics like...
Read more
TheHealthBoard, in your inbox

Our latest articles, guides, and more, delivered daily.

TheHealthBoard, in your inbox

Our latest articles, guides, and more, delivered daily.