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Vitamin D test for bone health, immunity, and energy levels

Blood Test for Vitamin D Levels and Bone Health

Vitamin D

  • Checks your body's Vitamin D levels.
  • Measures sunshine vitamin in blood.
  • Tests bone health nutrient levels.
First results as soon as overnight*

90 day happiness guarantee

We stand behind our service

Prescription & fees included

Go directly to the lab, no extra fees

Easy to understand results

With friendly doctor's notes & guidance

Fast & convenient

Lab visit as quick as 10 mins in & out

90 day happiness guarantee

We stand behind our service

Prescription & fees included

Go directly to the lab, no extra fees

Easy to understand results

With friendly doctor's notes & guidance

Fast & convenient

Lab visit as quick as 10 mins in & out

What's this test for?

This test is ideal if you're experiencing fatigue, frequent illnesses, bone or muscle pain, or mood changes like feeling down during winter months. It helps identify vitamin D deficiency, which affects bone health, immune function, energy levels, and overall well-being. Many people use this test when they spend limited time outdoors, live in northern climates, or suspect their symptoms are related to low vitamin D.

How should I prepare for this test?

Fasting is preferred but not required for this test, giving you flexibility in scheduling. You can have the test done at any time of day, though if you're taking vitamin D supplements, it's helpful to maintain your normal routine before testing for the most accurate reflection of your typical levels. No other special preparation is needed.

What's included in this test?

This test measures 25-Hydroxyvitamin D, the most accurate indicator of your body's vitamin D status. Vitamin D is essential for calcium absorption and bone strength, supports immune function to help fight infections, and plays a role in mood regulation and energy levels. This single measurement provides crucial information about whether you're getting enough of this sunshine vitamin through sun exposure, diet, or supplements.

What happens after I get my results?
You'll receive detailed doctor notes in simple language explaining what your vitamin D level means for your bone health, immune system, and energy. These notes include personalized recommendations like supplement dosages, dietary changes, or safe sun exposure tips. You'll also get the standard lab report and can track your vitamin D levels over time using our trends feature to see how your supplementation or lifestyle changes are improving your status.
Who should consider getting this test?
This test is ideal for people who spend most of their time indoors, live in northern climates with limited sunlight, have darker skin, or are over 50. It's also important if you're experiencing bone pain, frequent infections, fatigue, or depression. Anyone taking vitamin D supplements should test to ensure they're taking the right amount and achieving optimal levels.
What symptoms indicate I may need this test?
Common signs of low vitamin D include persistent fatigue, frequent colds or infections, bone or back pain, muscle weakness, and mood changes like feeling depressed, especially in winter. You might also experience slow wound healing, hair loss, or difficulty with balance and coordination. If you rarely spend time in sunlight or wear sunscreen constantly, you may have low levels even without obvious symptoms.
How can I naturally support my vitamin D levels?
The most effective natural method is safe sun exposure—about 10-30 minutes of midday sun several times per week on bare skin without sunscreen. Include vitamin D-rich foods like fatty fish (salmon, mackerel), egg yolks, fortified milk and cereals, and mushrooms exposed to UV light. If you have limited sun exposure or live in northern areas, vitamin D3 supplements are often necessary to maintain optimal levels.
What does low vitamin D mean?
Low vitamin D means your body isn't getting enough of this essential nutrient, which can weaken your bones and increase fracture risk. It may also compromise your immune system, making you more susceptible to infections and illnesses. Low levels are often linked to fatigue, muscle weakness, mood issues, and slow healing, and are especially common in people with limited sun exposure.
What does high vitamin D mean?
High vitamin D levels are uncommon and usually only occur from excessive supplementation, not from sun exposure or food. Very high levels can cause calcium buildup in the blood, leading to nausea, weakness, kidney problems, and confusion. If your levels are elevated, your doctor will likely recommend reducing or stopping supplements and retesting to ensure levels return to the optimal range.
How often should I retest my vitamin D levels?
If you're starting vitamin D supplementation for low levels, retest in 8-12 weeks to ensure the dosage is working and levels are improving. Once you've reached optimal levels, annual testing is typically sufficient for monitoring. If you have conditions affecting absorption like digestive disorders, or if you're on high-dose therapy, your doctor may recommend more frequent testing every 3-6 months.
How’s this work?
Getting your blood test with us is easy, private & backed by the power of science.

Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
  3. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
  4. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
  5. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
  6. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
  8. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.
How do I know which test to get?
In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option.

Just text or call us at 754-799-7833, email us at support@privatemdlabs.com, and we'll gladly help you. We've got your back and reply quickly.
Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?
Absolutely! We totally understand that errors can happen. No worries, we're here to help you.

Just reach out to us via text at 754-799-7833 or shoot us an email at support@privatemdlabs.com. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you.

There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out.

Our lab requires an address to be listed to generate an order.
Do you accept health insurance?
Only HSA & FSA is accepted.

Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts.

This policy applies to all insurance companies, including federal health insurance programs like Medicare.

If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com.
Can I cancel my order?
Yes.

We get it – sometimes your needs change.

As long as your samples haven’t been collected yet, we’re happy to help you cancel your order.

If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com.

You can read more about our cancellation policy here.
How can I find a lab location near me?
During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp).

Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym.

If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

You get clinical lab reports & simplified health insights.
Save time & gas, go straight to the lab. Our doctors cover the rest.
Results start landing the next day after your lab visit.*
We don’t sell or share your data. Your time & privacy matter.
US-licensed doctors have your back if things get unclear.
No hidden fees, nice discounts for regular checkups.
Save a trip to the doctor, go directly to the lab
Instant orders, results often overnight*
Results explained in simple language
Reviewed by US licensed doctors
Fast & confidential, we never sell or share your data
No insurance needed, transparent pricing
Demo results
Vitamin D, 25-Hydroxy 22 ng/mL
Demo results
Low Optimal 30 - 100 High
22 ng/mL

What this means

Your vitamin D level is below the optimal range, which is considered insufficient. This may contribute to fatigue, weakened immunity, bone discomfort, and mood changes, especially during winter months. Increasing your vitamin D through supplementation and lifestyle changes can help improve these symptoms.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More complex tests, such as hormone panels, may take up to 10–15 business days due to their complexity.
Here’s how easy it is to get blood work done on your terms
Choose a checkup
Order your test Save a trip to the doctor. Your results will come with clear, friendly explanations. Takes 2 minutes
Book a lab
Book an appointment Visit any of our 4,000 nearby lab locations to have your samples collected. Book or walk-in
Choose a checkup
Get results Receive a clear, easy-to-digest health report by email & SMS within a few business days. Get answers, fast

Blood Test for Vitamin D Levels and Bone Health

  • Checks your body's Vitamin D levels.
  • Measures sunshine vitamin in blood.
  • Tests bone health nutrient levels.
Still got questions? Text our super-cool support team at 754-799-7833 to get help finding your ideal checkup.

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We provide helpful guidance, not medical diagnoses. For medical decisions, consult a licensed professional.