Level 1 of 3Results in 8 daysActive vitamin B12
Sample: Blood
Most of the B12 in your blood is locked away in storage, and only a small share is in the form your cells can actually take in and use. This test measures that usable share, active B12, which makes it the sharper choice if you follow a plant-based diet, take metformin or stomach-acid medication, or have had a borderline B12 result before. One blood draw shows whether the B12 your body can use right now is keeping up, and whether your supplements are actually being absorbed.
€70.00
- 1. No fasting needed. Bring your confirmation and an ID.
These are general recommendations. Check the preparation for your tests with your doctor.
- Sample: Blood
- Results in8 days
- FastingNot required
- Active vitamin B12 (holotranscobalamin): The part of your B12 your cells can actually use. It can be low even when total B12 looks normal. Active B12 is the part of your vitamin B12 that your cells can actually take in and use, while the rest is held in storage. Because of that, total B12 can look normal while active B12 is low. Low levels can bring the same signs as low B12: tiredness, pins and needles in the hands or feet, a sore tongue, low mood or trouble concentrating.
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