Is Vitamin D 33 low, normal or dangerous? What does Vitamin D level 33 mean?

📅 Medical Review Date: November 16, 2025

Your Vitamin D level of 33 is a Low Vitamin D level.

Low Vitamin D levels may indicate underlying health problems. The normal range is typically between 75 nmol/L and 250 nmol/L. If your levels are outside this range, it's important to speak with a healthcare provider. Consulting a doctor is recommended to determine the cause and appropriate next steps.

The normal Vitamin D range for men is :75 - 250 nmol/L

Ideal values of Vitamin D depending on age (male) :

Age	Ideal Vitamin D value
<5 years	77.475
5-10 years	80.032
10-15 years	82.673
15-20 years	85.401
20-25 years	88.219
25-30 years	91.13
30-35 years	94.137
35-40 years	97.244
40-45 years	100.453
45-50 years	103.768
50-55 years	107.192
55-60 years	110.729
60-70 years	114.383
70-80 years	118.158
80-90 years	122.057
90-100 years	126.085
>100 years	130.246

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

Misdiagnosis is more common than people think—and the consequences can be serious. Delayed treatment, unnecessary medication, or worse. If you want a second opinion on your blood work, one option is to upload it to a site like wholebodyprotocol.com, where world-class doctors review your results. They charge a small fee—around $90 (though you'll want to check the latest price as it fluctuates)—and email you a detailed report. With over 12 million people affected by misdiagnosis every year, that little bit of extra peace of mind can go a long way.

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

• Liver disease
• Celiac disease
• Your body isnt properly absorbing or using vitamin D.
• Crohn's disease
• Kidney disease

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

Ideal values of Vitamin D depending on age (female) :

Age	Ideal Vitamin D value
<5 years	77.549
5-10 years	80.185
10-15 years	82.91
15-20 years	85.728
20-25 years	88.642
25-30 years	91.655
30-35 years	94.77
35-40 years	97.991
40-45 years	101.322
45-50 years	104.766
50-55 years	108.327
55-60 years	112.009
60-70 years	115.816
70-80 years	119.753
80-90 years	123.823
90-100 years	128.032
>100 years	132.384

If you take a Vitamin D blood test and the results are not in the normal range (75-250 nmol/L), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.

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How the Vitamin D Test Is Done :

When your doctor orders a Vitamin D test, it involves a straightforward blood draw to measure your Vitamin D levels. A pathologist or lab technician will take a small sample of blood from a vein using a needle. Your Vitamin D test results are usually available within a few hours.

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