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Folsäure

Folic Acid · Folate · Vitamin B9 · 5-MTHF

Vitamine & Nährstoffe
Einheit:
nmol/L
Abbreviation
Folate

Folate tests measure the concentration of folate in the blood, reflecting its availability for critical cellular processes.

Reference Ranges

Reference
745nmol/L
7
10
30
45
LowNormalHigh
Reference
Optimal
Unit · nmol/L

Reference ranges may vary slightly based on laboratory standards.

Overview

Übersicht

Folate, also known as Vitamin B9 or folic acid, is a water-soluble B-vitamin essential for numerous biological processes. It plays a critical role as a cofactor in one-carbon metabolism, facilitating the transfer of methyl groups necessary for the synthesis of nucleic acids and amino acids. Folate is vital for DNA synthesis and repair, and its presence is crucial for cell division and growth. Clinically, folate is significant in preventing neural tube defects during pregnancy, and its deficiency is associated with megaloblastic anemia, characterized by the production of abnormally large red blood cells. Researchers observed that folate deficiency can result from poor dietary intake, malabsorption, or increased physiological demand. In the context of athletic performance and biohacking, folate is important for optimal cellular function and energy metabolism, potentially influencing recovery and performance. However, excessive folate intake may pose risks, such as masking vitamin B12 deficiency and potentially promoting the growth of precancerous cells. Confounders in folate measurement include recent dietary intake, alcohol consumption, and genetic factors affecting folate metabolism. Fasting is not typically required for accurate assessment, but consistent timing of tests may be beneficial for comparability.

Klinische Bedeutung

Reduced folate levels indicate potential deficiencies leading to conditions such as megaloblastic anemia and increased risk of neural tube defects. Elevated levels may suggest excessive supplementation or dietary intake.

Dynamics

Trend Interpretation

Rising Values

Progressively rising folate levels may indicate excessive supplementation. Re-test in 4 weeks if levels are outside the optimal range.

Falling Values

Progressively falling folate levels suggest potential dietary insufficiency or malabsorption.

Re-test Interval

4 weeks if outside optimal range

Etiology

Causes — High & Low

Cause

Elevated Levels

  • Excessive supplementation
  • High dietary intake
  • Reduced vitamin B12 levels
  • Liver disease
Cause

Low Levels

  • Poor dietary intake
  • Malabsorption syndromes
  • Alcoholism
  • Increased physiological demand
Protocol

How to Optimize

Lever

Lifestyle

  • Reduce alcohol consumption
  • Maintain a balanced diet
  • Regular health check-ups
Lever

Nutrition

  • Consume leafy greens
  • Include fortified cereals
  • Eat legumes
Lever

Supplementation

  • Folic acid supplements
  • Methylfolate
  • Multivitamins with folate

Note:

Consult a healthcare provider before starting any supplementation, especially if pregnant or planning pregnancy.

Testing Guidelines

Fasting Not Required
Not Time-Sensitive

Testing Frequency

Annually for adults, more frequently if pregnant or at risk of deficiency.

Interfering Factors

  • Recent high folate meal
  • Alcohol consumption
  • Certain medications

Related Peptides & Hormones

Vitamin B12

Correlated with

hormone or peptide

Open Research Questions

Current research suggests that the optimal serum folate reference ranges and targets for various populations, particularly in relation to vitamin B12 interactions, remain debated. Researchers have not yet established the precise confounders affecting folate metabolism in conditions like methanol poisoning or megaloblastic anemia. Additionally, clinical questions regarding the long-term effects of folate fortification on cancer risk and the impact of high folate levels on embryonic development remain unanswered.

24 Research Publications

1,176

Total Citations

6

Human/RCT

4.4

Avg. Influence

2024

Latest

Sort
Filter
#01

The Concept of Folic Acid in Health and Disease.

ReviewInfluence14.0
232
This study examined the role of folates in health and disease, highlighting their importance as cofactors in essential metabolic pathways. Researchers found that folate deficiencies can arise from poor diet and various health conditions, and that while folate may protect against certain health issues, excessive levels could pose risks during embryonic development.
View on PubMed
#02

Maternal Multivitamin Intake, Plasma Folate and Vitamin B12 Levels and Autism Spectrum Disorder Risk in Offspring.

HumanInfluence12.0
203
This study explored the relationship between maternal multivitamin intake during pregnancy and the risk of Autism Spectrum Disorder (ASD) in children. Researchers observed that moderate supplementation was linked to a decreased risk of ASD, while very high levels of maternal plasma folate were associated with increased risk. The findings suggest a complex relationship between folate levels and developmental outcomes.
View on PubMed
#03

Methanol poisoning.

UnknownInfluence4.0
182
This study observed that methanol poisoning can be influenced by folate metabolism, with folate potentially aiding in the removal of toxic byproducts. Researchers noted that classic symptoms of methanol toxicity are linked to folate deficiency, indicating a unique susceptibility in humans.
View on PubMed
#04

Folic Acid and the Prevention of Birth Defects: 30 Years of Opportunity and Controversies.

ReviewInfluence5.0
105
Researchers found that folic acid fortification has significantly reduced neural tube defects (NTDs) by up to 78% in populations with limited access to folic acid. The study highlighted the need for high-quality research to further understand the interactions between folic acid and other vitamins, particularly vitamin B12.
View on PubMed
#05

Maternal Folic Acid Supplementation Mediates Offspring Health via DNA Methylation.

ReviewInfluence2.0
86
Researchers observed that maternal folic acid supplementation is linked to offspring health through DNA methylation processes. The study highlighted the importance of balancing folate intake to prevent both deficiency and excess during pregnancy.
View on PubMed
#06

Rare fragile sites.

UnknownInfluence4.0
86
Researchers examined rare fragile sites associated with folate sensitivity, noting that these sites may be linked to trinucleotide repeat expansions. The study highlighted the clinical significance of certain fragile sites in relation to intellectual disabilities.
View on PubMed
#07

Laboratory assessment of folate (vitamin B9) status.

ReviewInfluence1.0
84
Researchers found that folate plays a vital role in cellular processes and that both deficiency and excess can lead to various health issues, including anemia and cognitive decline. The study emphasized the importance of accurate laboratory assessments for folate status.
View on PubMed
#08

Folate Receptor as a Biomarker and Therapeutic Target in Solid Tumors.

UnknownInfluence1.0
73
This study explored the potential of the folate receptor, particularly FRα, as a biomarker for cancer diagnosis and prognosis. Researchers observed that several types of cancers overexpress this receptor, indicating its relevance in cancer biology and treatment strategies.
View on PubMed
#09

Homocystinuria diagnosis and management: it is not all classical.

ReviewInfluence3.0
41
This study examined the relationship between homocystinuria and folate metabolism, finding that deficiencies in folate and vitamin B12 can lead to elevated homocysteine levels. Researchers emphasized the need for accurate diagnosis and management of these conditions.
View on PubMed
#10

Serum folate levels in bipolar disorder: a systematic review and meta-analysis.

Meta-AnalysisInfluence1.0
26
Researchers conducted a meta-analysis to investigate serum folate levels in patients with bipolar disorder (BD). They found that serum folate levels were significantly lower in BD patients compared to controls. However, the study noted the need for further research to clarify the relationship between folate levels and mood states.
View on PubMed

Publication Trend

Research publications about Folsäure over time

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This page is for informational and research purposes only. All information is based on published scientific literature and does not constitute medical advice, diagnosis, or treatment recommendations. Many substances listed may not be approved for human use and may be subject to drug regulation laws (e.g., AMG in Germany, FDA in the US). PepStack does not encourage the use of any substance on humans. Always consult a qualified healthcare professional before making any health-related decisions. Use of this information is entirely at your own risk. PepStack assumes no liability for the accuracy, completeness, or timeliness of the content provided. Full disclaimer