What does the Vitamin D Check Plus measure?

Three values are measured: 25-OH vitamin D – the storage form and the most meaningful value for your supply –, alkaline phosphatase as an indicator of bone turnover, and albumin, the main transport protein in the blood.

Why is more than just vitamin D measured?

The vitamin D value shows your current supply. Alkaline phosphatase rises when bone turnover increases – for example with a longer-standing deficiency. Albumin gives an indication of your protein status. Together, the results are easier to interpret than a single value.

Who is the test useful for?

For anyone who gets little sun – for example with office work or during the winter months –, for older people and people with darker skin, for persistent tiredness, muscle weakness or frequent infections, and as a check if you take vitamin D.

When is the best time to take the test?

Vitamin D levels are usually lowest towards the end of winter – a test in spring therefore shows how well you got through the darker months. If you take vitamin D, a follow-up after about eight to twelve weeks makes sense.

How quickly are the results available?

Usually a few days after the sample arrives at the laboratory. You will find your results clearly presented in your Probatix account.

What is a normal vitamin D level?

The Robert Koch Institute classifies levels below 30 nmol/l (12 ng/ml) as deficient, levels between 30 and 50 nmol/l as insufficient, and 50 nmol/l (20 ng/ml) or above as sufficient. Your report includes the laboratory's reference ranges.

What can I do if my level is too low?

It is best to discuss the result with your doctor. Vitamin D should not be taken in high doses without medical advice. A follow-up test after a few weeks shows whether supplementation is working.

Vitamin-D-Check Plus - avi - Probatix Health

Alle Werte im Überblick – Vitamin-D-Check Plus - avi

Vitamin D Check Plus - avi

Q: How does the test work?

At home, you take a small blood sample from your fingertip with the test kit and send it in the enclosed envelope to our accredited partner laboratory. Illustrated instructions are included in the kit.

Home Lab Test

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The Vitamin D Check Plus shows how well you are supplied with vitamin D – complemented by alkaline phosphatase and albumin, which help put the result into context.

➤ 25-OH vitamin D, alkaline phosphatase and albumin in one test
➤ Shows whether you have a vitamin D deficiency
➤ Indicates whether bone metabolism is already affected
➤ Ideal for checking your level if you take vitamin D
➤ Simple blood sample at home with a test kit
➤ Results available online and easy to understand

Laboratory analysis in a specialized laboratory (ISO 15189)
Free Shipping & Return
Results digital & comprehensible

In stock. 3-5 business days delivery time

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Over 10,000 blood tests conducted

Welche Werte misst dieser Test?

25-OH-Vitamin-D3, Alk. Phosphatase (AP), Albumin.

Eine detaillierte Übersicht aller Werte finden Sie weiter unten im Bereich „Alle Werte im Detail“.

How does the test work?

1. Take a sample with our test kit.

2. Send the sample to the lab using the prepaid envelope.

3. View results digitally after a few days.

Are the values reliable?

All tests offered by us are evaluated and validated in certified medical laboratories in Germany.

Do you have any questions?

Known from:

Vitamin D Check Plus - avi - Values in Detail:

25-OH-Vitamin-D3 ⌄

25-OH vitamin D is the storage form of vitamin D that the body produces in the liver from vitamin D formed by sunlight or food. Vitamin D supports calcium absorption, ensures healthy bones and teeth, and plays an important role for muscles, nerves, and the immune system.

The 25-OH vitamin D test is the best method to check vitamin D status. Low levels can indicate too little sunlight, an unbalanced diet, or diseases and are associated with bone diseases such as osteoporosis or rickets. Excessive levels usually result from too high supplement doses and can strain the kidneys and liver.

Alk. Phosphatase (AP) ⌄

The biomarker alkaline phosphatase (AP) is an enzyme primarily produced in bones and the liver. An increase in AP levels in the blood can indicate bone or liver diseases. Therefore, measuring AP is an important part of diagnosing and monitoring bone and liver diseases.

Albumin ⌄

Albumin is the most common protein in blood plasma and is produced in the liver. It retains fluid in the vascular system and transports vitamins, enzymes, and hormones.

A deficiency may be caused by liver or kidney diseases, inflammation, or poor protein supply. High albumin levels occur with fluid loss or a very high-protein diet. Since albumin also reflects the nutritional situation, persistently low levels indicate insufficient protein intake and an increased risk of muscle weakness or infections.