What does the CYP24A1 (Vitamin D) gene do?

CYP24A1 provides instructions for an enzyme that helps your body break down (inactivate) vitamin D when it’s no longer needed. It acts on key vitamin D forms—including 25-hydroxyvitamin D (often measured on blood tests) and 1,25-dihydroxyvitamin D (the active hormone form)—helping regulate vitamin D activity and calcium balance.

Why is the CYP24A1 (Vitamin D) gene important?

CYP24A1 is important because it helps control how much active vitamin D is available in your body over time. Genetic variants in CYP24A1 have been associated in research with lower vitamin D levels and differences in response to vitamin D supplementation. Because vitamin D supports bone health and also plays roles in immunity, mood, and metabolic health, CYP24A1-related differences may influence how you personalize nutrition and supplement decisions.

What can I do based on my CYP24A1 (Vitamin D) results?

Based on your CYP24A1 (Vitamin D) results, you’ll receive 4 personalized recommendations that translate your genotype into actionable next steps. These include dietary strategies (e.g., targeted food choices that complement your vitamin D plan), lifestyle guidance (e.g., sun-exposure habits and tracking), and supplement recommendations (e.g., how to approach vitamin D supplementation more effectively based on your predicted metabolism). Your report is designed to help you make informed, DNA-based choices and know what to monitor next.

Can CYP24A1 variants cause low vitamin D levels?

Research has linked specific CYP24A1 variants to lower vitamin D levels in the blood. CYP24A1 encodes an enzyme that inactivates vitamin D metabolites; variants associated with increased enzyme activity or expression may lead to faster breakdown of vitamin D, resulting in lower baseline levels or a smaller rise after supplementation. This report focuses on well-studied SNPs (including rs6013897, rs2248359, and rs4809957) to help explain why some people are more prone to low vitamin D and why their response to standard vitamin D approaches can differ.

What does a CYP24A1 genetic test tell you about vitamin D supplements?

A CYP24A1 genetic test can indicate whether your genotype is associated with lower vitamin D levels and, in some studies, reduced responsiveness to typical vitamin D supplementation. Because CYP24A1 helps deactivate vitamin D, certain variants may mean you need a more personalized plan than a one-size-fits-all dose. This report combines analysis of 3 CYP24A1 SNPs with 4 personalized recommendations across diet, lifestyle, and supplements—helping you choose a strategy that fits your biology and supports smarter monitoring and follow-up.

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CYP24A1 (Vitamin D)

Rated 4.69 out of 5 based on 13 customer ratings

4.7 (14 reviews)

CYP24A1 (Vitamin D)

Rated 4.69 out of 5 based on 13 customer ratings

4.7 (14 reviews)

The report provides up to 4 personalized recommendations based on 3 genetic variants analyzed. Purchase a DNA kit to generate your genetic results. If you've already got one, you're all set to continue. View sample report.

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Trusted by 200,000+ users & 2,000+ doctors

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Analyzes 3 Genetic Variants

Up to 4 DNA-Based, Science-Backed Recommendations

CYP24A1 (Vitamin D)

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Product features

Note: To generate your personalized report, purchase a SelfDecode DNA kit. If you already have one, you’re ready to proceed.

Understanding Your CYP24A1 (Vitamin D) Variants: A DNA Gene Report

Do you take vitamin D but still wonder why your levels don’t budge? Have you ever asked why two people can get the same sun exposure yet have very different vitamin D blood tests? And could your genetics be influencing how quickly your body breaks down active vitamin D? The CYP24A1 (Vitamin D) gene helps regulate how long active vitamin D stays available in your body—so understanding your CYP24A1 variants can add clarity to your nutrition choices, supplement strategy, and long-term bone and immune support.

Key Report Highlights

This CYP24A1 (Vitamin D) DNA report analyzes 3 clinically studied genetic variants (SNPs) and turns your results into 4 personalized recommendations. CYP24A1 encodes an enzyme that helps deactivate vitamin D when it’s no longer needed—an essential part of maintaining balanced vitamin D activity and calcium homeostasis. Compelling fact: CYP24A1 directly influences the breakdown of both 25-hydroxyvitamin D (the main circulating form measured in blood tests) and 1,25-dihydroxyvitamin D (the active hormone form), which can affect how you respond to vitamin D intake over time.

Personalized, Actionable Recommendations

Your recommendations are tailored to your CYP24A1 genotype, because certain variants are linked to lower vitamin D levels and, in some cases, reduced effectiveness of standard supplementation. You’ll receive dietary, lifestyle, and supplement guidance designed to fit how your body may metabolize vitamin D—plus practical next steps you can discuss with a clinician. Examples of the kind of advice you may see include optimizing vitamin D–rich food choices and timing, adjusting supplement form or dosing approach based on likely vitamin D breakdown, and lifestyle strategies such as sunlight habits and monitoring intervals to help you track whether your plan is working.

User-Friendly Format and Trust

With actionable and easy-to-understand recommendations, the report is designed for seamless integration into your daily life. Its user-friendly format ensures accessibility, making complex genetic data understandable and practical for users at all levels of familiarity with genetic information.

The report is rooted in accuracy and reliability, backed by comprehensive scientific research from reputable sources. It has garnered the trust of over 150,000 users and 1,000+ healthcare professionals. Furthermore, the report complies with HIPAA and GDPR, ensuring your privacy and security are prioritized.

Getting Started

To embark on this journey, simply purchase a DNA kit for an easy at-home sample collection, guaranteeing a hassle-free process. Delve into a personalized approach to wellness and equip yourself with actionable insights to enrich your life and health.

Product FAQs

: CYP24A1 provides instructions for an enzyme that helps your body break down (inactivate) vitamin D when it’s no longer needed. It acts on key vitamin D forms—including 25-hydroxyvitamin D (often measured on blood tests) and 1,25-dihydroxyvitamin D (the active hormone form)—helping regulate vitamin D activity and calcium balance.
: CYP24A1 is important because it helps control how much active vitamin D is available in your body over time. Genetic variants in CYP24A1 have been associated in research with lower vitamin D levels and differences in response to vitamin D supplementation. Because vitamin D supports bone health and also plays roles in immunity, mood, and metabolic health, CYP24A1-related differences may influence how you personalize nutrition and supplement decisions.
: Based on your CYP24A1 (Vitamin D) results, you’ll receive 4 personalized recommendations that translate your genotype into actionable next steps. These include dietary strategies (e.g., targeted food choices that complement your vitamin D plan), lifestyle guidance (e.g., sun-exposure habits and tracking), and supplement recommendations (e.g., how to approach vitamin D supplementation more effectively based on your predicted metabolism). Your report is designed to help you make informed, DNA-based choices and know what to monitor next.
: Research has linked specific CYP24A1 variants to lower vitamin D levels in the blood. CYP24A1 encodes an enzyme that inactivates vitamin D metabolites; variants associated with increased enzyme activity or expression may lead to faster breakdown of vitamin D, resulting in lower baseline levels or a smaller rise after supplementation. This report focuses on well-studied SNPs (including rs6013897, rs2248359, and rs4809957) to help explain why some people are more prone to low vitamin D and why their response to standard vitamin D approaches can differ.
: A CYP24A1 genetic test can indicate whether your genotype is associated with lower vitamin D levels and, in some studies, reduced responsiveness to typical vitamin D supplementation. Because CYP24A1 helps deactivate vitamin D, certain variants may mean you need a more personalized plan than a one-size-fits-all dose. This report combines analysis of 3 CYP24A1 SNPs with 4 personalized recommendations across diet, lifestyle, and supplements—helping you choose a strategy that fits your biology and supports smarter monitoring and follow-up.

WHY SELFDECODE?

Empowering Your Well-being Journey

This personalized health report is powered by SelfDecode's cutting-edge AI technology, designed to unlock a deeper understanding of your health potential. We're committed to providing you with the most accurate and actionable insights to guide your well-being journey.

Most Accurate
Polygenic Risk Scoring

We leverage cutting-edge algorithms and analyze a massive dataset of 2 million people to deliver the most precise assessment of your genetic health predispositions. Our advanced approach takes into account your ancestry - which is often overlooked by other methods - to provide you with the most accurate risk assessment. This ensures that the risk scores you receive are based on the latest scientific evidence and are truly personalized to your genetic makeup.

Cutting-Edge AI &
Machine Learning

We have invested 20 million dollars developing our AI and machine learning models. Our patent-pending technology provides you with the most personalized health insights and recommendations by taking into account your unique DNA, lifestyle, labs, symptoms, conditions and health goals. This empowers you to make informed decisions tailored to your specific needs.

Analyzes 200 Million Variants & Sophisticated Recommendation Engine

We go beyond the basics by analyzing a staggering 200 million genetic variants to provide the most comprehensive picture of your health potential. Our sophisticated recommendation engine leverages this deep analysis to provide personalized and actionable insights to optimize your well-being journey.

Built by Leading
Scientists & Engineers

A dedicated team of over 60 scientists and engineers is continuously innovating and developing our technology, ensuring it remains at the forefront of personalized health.

Reviews

Rated 4.69 out of 5 based on 13 customer ratings

4.7 (14 reviews)

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Noah G.

Rated 5 out of 5
As a night-shift nurse, I never knew why my vitamin D labs stayed low even with occasional supplements. The CYP24A1 (Vitamin D) report explained how my genetics can affect vitamin D breakdown and gave me a simple plan. I started “Maintain Optimal Vitamin D Levels” with a consistent dose, added “Dietary Vitamin D” like salmon and fortified yogurt, and used the “Sunlight Exposure” guidance on my days off. I also paired D with the “Vitamin D and Calcium” recommendation. My follow-up bloodwork finally moved into range, and my energy feels steadier.
Alejandro V.

Rated 4 out of 5
Compared to just Googling symptoms or reading internet articles, this was much more specific to my genetics. The advice actually felt tailored. Only wish it went a bit deeper into interaction with other nutrient pathways, but overall it’s a step above what I’d found before.
Sandra K.

Rated 5 out of 5
I really appreciate how deep this goes into CYP24A1 gene variants and their effect on vitamin D metabolism. The explanation of how the gene modulates 25-hydroxyvitamin D levels in the bloodstream made everything click for me. It was refreshing to see actionable recommendations supported by clear mechanistic pathways. If you’re curious about the interplay between genetics and nutrient absorption, this is top-tier.
Terrence D.

Rated 5 out of 5
Sunlight timing, better D.
Kristen M.

Rated 5 out of 5
CYP24A1, winter D solved.

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CYP24A1 (Vitamin D)

Product features

Understanding Your CYP24A1 (Vitamin D) Variants: A DNA Gene Report

Key Report Highlights

Personalized, Actionable Recommendations

User-Friendly Format and Trust

Getting Started

Product FAQs

What does the CYP24A1 (Vitamin D) gene do?

Why is the CYP24A1 (Vitamin D) gene important?

What can I do based on my CYP24A1 (Vitamin D) results?

Can CYP24A1 variants cause low vitamin D levels?

What does a CYP24A1 genetic test tell you about vitamin D supplements?

WHY SELFDECODE?

Empowering Your Well-being Journey

Most AccuratePolygenic Risk Scoring

Cutting-Edge AI &Machine Learning

Analyzes 200 Million Variants & Sophisticated Recommendation Engine

Built by Leading Scientists & Engineers

Reviews

Related Products

Most Accurate
Polygenic Risk Scoring

Cutting-Edge AI &
Machine Learning

Built by Leading
Scientists & Engineers