What causes high Vitamin D and low Vitamin B12?

High Vitamin D and low Vitamin B12 can be caused by many reasons.

If your Vitamin D is in between 75 nmol/L and 250 nmol/L and your Vitamin B12 is in between 211 pg/mL and 911 pg/mL then you need not worry as these are the normal ranges for Vitamin D and Vitamin B12 respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Normal range of Vitamin D : 75 - 250 nmol/L

Ideal values of Vitamin D depending on age :

Age	Ideal Vitamin D value
<5 years	76.316
5-10 years	77.655
10-15 years	79.017
15-20 years	80.403
20-25 years	81.813
25-30 years	83.248
30-35 years	84.708
35-40 years	86.194
40-45 years	87.706
45-50 years	89.244
50-55 years	90.809
55-60 years	92.402
60-70 years	94.023
70-80 years	95.672
80-90 years	97.35
90-100 years	99.058
>100 years	100.795

*Ideal values are calculated based on our database of patient records

If you want your blood test report to be interpreted by Vitamin D specialist, then you can upload your report. Our Vitamin D expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now

1,37,160

Total number of patients treated

Some examples of conditions that increase or decrease Vitamin D levels include:

• Liver disease
• Celiac disease
• Your body isn’t properly absorbing or using vitamin D.
• Crohn's disease
• Kidney disease

If you want your blood test report to be interpreted by Vitamin D specialist, you can upload your report. Our Vitamin D expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now

Normal range of Vitamin B12 : 211 - 911 pg/mL

Ideal values of Vitamin B12 depending on age :

Age	Ideal Vitamin B12 value
<5 years	214.701
5-10 years	218.467
10-15 years	222.299
15-20 years	226.198
20-25 years	230.166
25-30 years	234.203
30-35 years	238.311
35-40 years	242.491
40-45 years	246.744
45-50 years	251.072
50-55 years	255.476
55-60 years	259.957
60-70 years	264.517
70-80 years	269.157
80-90 years	273.878
90-100 years	278.682
>100 years	283.57

High Vitamin D and low Vitamin B12 can be caused by a lot of reasons. If you take Vitamin D and Vitamin B12 blood tests and the results are higher than 250 nmol/L for Vitamin D and lower than 211 pg/mL for Vitamin B12, your physician may recommend more tests to figure out the problem. You might also get these tests if your physician thinks you have some other disease.

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How the Vitamin D and Vitamin B12 Tests Are Done :

If your doctor wants Vitamin D and Vitamin B12 tests on you, you may need to go through these tests. During the Vitamin D and Vitamin B12 blood tests, a pathologist will put a needle into your veins and take out a small quantity of blood. A pathologist is a physician in the medical field who thoroughly studies the causes and effects of disease. Within a few hours you will get your Vitamin D and Vitamin B12 Test reports by your pathologist.

Medical References

• MedlinePlus – Vitamin D Test
• MedlinePlus – 25-hydroxy vitamin D test
• Mayo Clinic – 2425D - Overview: 25-Hydroxyvitamin D:24,25-Dihydroxyvitamin D Ratio, Serum