Active Vitamin B12 (Holo-TC) Test

The sensitivity and specificity for this blood test is almost 100%. Sensitivity is the ability of a test to correctly identify test users with a disease. Specificity is the ability of a test to correctly identify test users without the disease.

All of Homed-IQ’s self-sampling tests are scientifically certified and validated by the laboratory for home use. This means the tests have been checked by our lab to ensure the results of finger prick samples taken at home are as accurate as samples taken in a blood testing center or doctor’s office. It is only legal to sell validated medical tests. Each sample is processed in a laboratory that is ISO15189 certified, which allows us to guarantee the reliability of the tests.

Yes. When you eat plant-based, it is advisable to keep a close eye on your vitamin levels. This is especially true for vitamin B12,as it is a common vitamin deficiency among vegetarians and vegans. 

Unlike other deficiencies like vitamin D, a lack of vitamin B12 usually causes noticeable symptoms. Untreated, a lack of vitamin B12 can be dangerous and impact the entire body. However, early symptoms could be confused for other conditions or simply tiredness. The only definitive way to know if you are deficient in vitamin B12 is through a test. A blood test is the most common way to check vitamin B12, but it is also possible to use a urine test.

The recommended daily vitamin B12 intake for adults is 2.8 micrograms a day.

Once you begin treating your vitamin B12 deficiency, it can take six to 12 months for levels to return to normal. You may not see any improvement in the first few months of treatment, but symptoms should gradually decrease.

Severe vitamin B12 deficiency can cause neurological problems, such as vision loss, memory loss, and reduced physical coordination. Furthermore, low B12 can cause anemia and its associated complications.

This test only measures vitamin B12 levels in blood. If you would also like to test for other vitamins or minerals, we recommend Homed-IQ’s Vitamin Deficiency Test. In addition to vitamin B12, this test also measures folic acid and vitamin D levels in the blood. If you would like to gain a more complete picture of your health, consider our Preventive Health Check.

We currently have no agreements with health insurers. At Homed-IQ, we therefore keep our tests as affordable as possible to give everyone the opportunity to gain more control over their health.

Active vitamin B12, also known as Holotranscobalamin or Holo-TC, refers to the portion of vitamin B12 that is readily available for use by the cells and body tissues. This form is crucial for key bodily functions, including nerve health, red blood cell production, and DNA synthesis. Total vitamin B12, in contrast, includes both the active and the inactive forms of the vitamin. The inactive portion, while contributing to the overall B12 level, is not immediately usable by the body. Measuring total B12 can sometimes mask deficiencies in active B12, as the total level might appear adequate despite a shortage in the active form. As such, measuring active B12 can provide a more accurate reflection of the vitamin's functional status in the body.