What's this test for?

This test is ideal if you're experiencing constant tiredness, bone or muscle aches, or frequent illness, since these can be signs of low vitamin D. It also helps if you spend little time outdoors, follow a limited diet, or have a condition that affects how your body absorbs nutrients. Checking your vitamin D level can explain symptoms that are otherwise hard to pin down.

What happens after I get my results?

Your results will show up in your account with your vitamin D level and a clear explanation of what the normal range means. If your level is low, simple steps like more sun exposure, a vitamin D supplement, or adding foods like fatty fish and fortified milk can help, and retesting in a few months shows if it's working. If your level is very high or very low, the report will note when you should seek medical care. You can also download the full lab report and track your vitamin D levels over time using the trends feature.

What symptoms indicate I may need this test?

Common signs of low vitamin D include ongoing fatigue, bone pain, muscle weakness or cramps, and getting sick more often than usual. Some people also notice mood changes or slower healing after injury. If you have several of these symptoms, especially with limited sun exposure, this test can help you understand why.

How can I naturally support healthy vitamin D levels?

Spending 10-30 minutes in sunlight several times a week helps your skin naturally produce vitamin D. Eating foods like salmon, egg yolks, fortified milk, and mushrooms can also boost your intake. A vitamin D3 supplement is another simple option, especially during winter months when sunlight is limited.

When will I get my results?

Results are typically ready within about 7 days of your lab visit. You'll get a notification as soon as your report is available in your account, where you can view your vitamin D level along with an explanation of what it means.

Who should consider this test?

People who spend most of their time indoors, live in northern climates, have darker skin, follow a vegan or dairy-free diet, or are over age 65 are all more likely to have low vitamin D. It's also useful for anyone with unexplained fatigue, bone pain, or a history of frequent fractures. Checking your level gives you a clear starting point for improving your health.

What is vitamin D and why does it matter?

Vitamin D is a nutrient your body needs to absorb calcium and keep bones strong. It also plays a role in muscle function and your immune system. Without enough of it, bones can become weak or brittle over time, which is why keeping levels in a healthy range matters.

What does high vitamin D mean?

A high vitamin D level usually comes from taking too much in supplement form rather than from sun or food. Very high levels can lead to too much calcium in your blood, which may cause nausea, weakness, or kidney problems. If your result is significantly elevated, it's a good idea to stop supplementing and seek medical care to check your calcium levels.

What does low vitamin D mean?

A low result means your body doesn't have enough vitamin D to support strong bones and normal muscle and immune function. This is commonly caused by limited sun exposure, a diet low in vitamin D, or trouble absorbing it due to digestive issues. The good news is it's usually easy to correct with sunlight, diet changes, or a supplement.

How often should I retest?

If you're correcting a low level with supplements or lifestyle changes, retesting after 2-3 months is a good way to see if your plan is working. Once your level is in a healthy range, checking once a year is generally enough, especially if you have limited sun exposure or risk factors for deficiency.

Getting your blood test with us is easy, private & backed by the power of science.Long story short: In the test options, use the filters or search box to narrow your choices and find the test you want. 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. 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. 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. 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. 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. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy! 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.

When will my lab results be available?

Most test results will be available within 1–3 business days. Once they're ready, we'll send an email and text message to let you know. After your blood draw, just hang tight and don't worry – we'll keep you updated and in the loop! If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com, and we'll gladly help you.

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.

Cardio IQ Vitamin D 25-Hydroxy Test | Check Levels Fast | Private MD Labs

Getting your blood test with us is easy, private & backed by the power of science.

Long story short:

In the test options, use the filters or search box to narrow your choices and find the test you want.
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.
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.
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.
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.
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.
You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!

754-799-7833

[email protected]

Vitamin D Blood Test — 25-Hydroxy Level Check