B Vitamins

B vitamins are involved in a wide range of bodily functions including energy production, nervous system health, and the creation of red blood cells. Deficiencies can develop gradually and may cause symptoms that overlap with many other conditions, such as fatigue, mood changes, or tingling sensations. Testing multiple B vitamins together can provide a broader view of B vitamin status.

This test may be relevant for women who:

• Experience symptoms such as fatigue, mood changes, or neurological symptoms like tingling
• Follow a vegetarian or vegan diet, which may be lower in certain B vitamins
• Take medications that may affect B vitamin absorption
• Want to check their B vitamin levels as part of a nutritional assessment

This panel measures four B vitamins:

• Vitamin B12: involved in red blood cell formation, neurological function, and DNA synthesis; found primarily in animal products
• Folate (Folic Acid): involved in cell division and red blood cell production; commonly monitored during pregnancy and in women of reproductive age
• Vitamin B1 (Thiamine): involved in energy metabolism and nervous system function
• Vitamin B6 (Pyridoxine): involved in amino acid metabolism, neurotransmitter production, and immune function

Low B12 can be associated with a type of anemia and neurological symptoms. Low folate may affect cell production and is commonly monitored in women of reproductive age. B1 and B6 deficiencies are less common but can occur in certain dietary patterns or with specific medication use. Together, these results provide a picture of B vitamin status that can be discussed with a healthcare provider.

The test requires a blood draw at a certified sample point (afnamepunt). There are over 750 locations across the Netherlands. After placing your order, you can select a convenient location and schedule your visit.

This test may be considered when:

• You experience symptoms that may be related to B vitamin deficiency
• You follow a diet that may be low in certain B vitamins
• You want to assess your B vitamin status alongside other health markers
• You take medications that may affect B vitamin absorption or metabolism

Each vitamin is shown with your value and the reference range. Low levels may suggest inadequate intake, reduced absorption, or increased demand. Results should be interpreted in the context of your diet, supplementation, and overall health. A healthcare provider can help determine whether any adjustments may be appropriate.

No specific preparation is needed. No fasting is required. If you take B vitamin supplements, results will reflect your supplemented levels, which may be useful for assessing whether your current supplementation is adequate.

Your results are typically available within a few working days. Each vitamin is shown with your value, the reference range, and an explanation. These results can be discussed with your healthcare provider or dietitian to determine whether any dietary or supplementation adjustments may be appropriate.