Folate (Serum)
The Folate (Serum) blood test measures the level of folate (vitamin B9) circulating in your bloodstream. Folate is an essential B vitamin that plays a key role in DNA synthesis, red blood cell formation, and normal nervous system function. Adequate folate levels are important at all stages of life, but especially during periods of rapid cell growth such as pregnancy.
Low folate levels can develop gradually and may not cause obvious symptoms at first. Over time, deficiency can contribute to fatigue, weakness, mouth ulcers, cognitive changes, and certain types of anaemia. Serum folate testing helps assess recent folate intake and can support early identification of deficiency.
- Price: £69
- Code: FOL
- TAT: 1-2 Working Days
- Sample Type: Blood
What is folate and why is it important?
Folate is a water-soluble B vitamin found naturally in foods such as leafy green vegetables, legumes, citrus fruits, and fortified grains. It is essential for the production of healthy red blood cells and for the synthesis and repair of DNA.
During pregnancy, adequate folate levels are particularly important because they help reduce the risk of neural tube defects in a developing baby. For this reason, folate status is often assessed in people who are pregnant, planning pregnancy, or experiencing symptoms suggestive of deficiency.
Why might I need a serum folate test?
A serum folate test may be recommended if you have symptoms such as persistent tiredness, weakness, shortness of breath, mouth sores, or difficulty concentrating. It is commonly used when investigating anaemia or nutritional deficiencies.
The test may also be requested if you have dietary restrictions, gastrointestinal conditions affecting absorption, increased nutritional needs, or if you are taking medications that can interfere with folate metabolism. Serum folate reflects recent intake and can help assess whether current dietary supply is adequate.
What do the results mean?
Low serum folate levels may indicate insufficient dietary intake, increased requirements, or absorption problems. In some cases, further testing such as red cell folate or vitamin B12 may be recommended to provide a more complete picture.
Normal or high levels usually suggest adequate recent intake, but results are always interpreted alongside symptoms, medical history, and other blood tests. Your healthcare professional will explain what your result means for you and whether any follow-up is needed.
How is the test performed?
The serum folate test is performed using a simple blood sample collected during a short appointment. The procedure is quick and routine, and our clinical team will ensure you are comfortable throughout.
Do I need to prepare the test?
No special preparation or fasting is required for this test unless you have been advised otherwise.
FAQs
When will I receive my results?
Results are usually available within the stated turnaround time.
Should I discuss my results with a doctor?
Yes, results should always be reviewed with a qualified healthcare professional.
Why Choose Marylebone Diagnostic Centre?
At Marylebone Diagnostic Centre, we provide professional blood testing in a calm and supportive environment, with fast turnaround times and clear communication. Our experienced clinical team focuses on patient care and helping you understand your results, so you can make informed decisions about your health with confidence.
Book Your Folate (Serum) Test Today
If you are concerned about nutritional health, unexplained fatigue, or planning for pregnancy, book your Folate (Serum) blood test with Marylebone Diagnostic Centre.
