Quick Summary

Luteolin is a flavonoid classified under antioxidants and polyphenols that is under research for its potential antioxidant and anti-inflammatory effects. While it is found naturally in various plants, current evidence in humans remains insufficient to establish clear benefits, typical dosage, safety profile, or authorized health claims.

What is It?

Luteolin is a naturally occurring flavonoid compound categorized among antioxidants and polyphenols. It is studied as a dietary supplement for its antioxidative and anti-inflammatory properties.

How It May Work in the Body

Luteolin is proposed to act as an antioxidant and modulate inflammatory processes based on its chemical structure and in vitro studies. Two main mechanisms suggested include:

  • Scavenging of reactive oxygen species (antioxidant activity)
  • Inhibition of pro-inflammatory signaling pathways

However, these proposed mechanisms are mainly derived from in vitro and animal studies, with insufficient direct human evidence to confirm these modes of action.

Common Supplement Forms

Currently, information about common supplement forms of luteolin is limited. No specific forms have been well characterized or differentiated in terms of efficacy or bioavailability.

Typical Dosage and How It Is Used

There is no consensus or official recommendation on a typical luteolin dosage for supplementation due to limited human clinical data. Dosage and safety in humans have not been well studied; therefore, caution is advised when considering luteolin supplements.

Note: There is no established daily intake recommendation or official guideline for luteolin supplements.

Natural Sources

Luteolin is found in various plants and foods, although specific dietary sources were not provided in the supplied evidence. Commonly, luteolin occurs in some fruits, vegetables, and herbs, but this page focuses on luteolin as a supplement rather than dietary intake.

Absorption and Bioavailability

Information on luteolin absorption, bioavailability differences among supplement forms, as well as factors enhancing or inhibiting its absorption, is currently not well characterized. No conclusive data exist to inform consumers about optimal formulations or interactions affecting luteolin uptake.

Potential Benefits: What Does the Evidence Say?

Antioxidant and Anti-inflammatory Effects

Luteolin has been studied for its antioxidant and anti-inflammatory properties primarily in vitro and animal models. Early evidence suggests it may modulate oxidative stress and inflammation pathways.

However, human clinical evidence remains insufficient and preliminary to draw definitive conclusions. There is a lack of multiple well-conducted human clinical trials to confirm efficacy in these areas.

Side Effects and Safety

Currently, no common side effects, contraindications, or specific safety concerns related to luteolin supplementation have been reliably established. Information on safety during pregnancy or breastfeeding is lacking. Furthermore, no well-defined toxicity profile or documented overuse effects have been reported.

Drug and Supplement Interactions

There is limited information available regarding interactions between luteolin supplements and medications or other supplements. Due to limited safety data, caution is advisable.

Who Should Be Careful?

People who are pregnant, breastfeeding, have medical conditions, are using medication, or are planning surgery should consult a healthcare professional before considering luteolin supplementation. Given the limited safety and interaction data, professional guidance is important to minimize risks.

Pregnancy, Breastfeeding and Special Populations

Current evidence does not provide safety information on luteolin use during pregnancy or breastfeeding. Special populations should avoid luteolin supplementation without medical supervision.

Quality, Standardization and What to Look For

Due to the limited market presence and sparse data on luteolin supplements, there is little information regarding quality control or standardization of luteolin products. When choosing any supplement, look for products that are independently tested for purity and quality by reputable third parties.

Frequently Asked Questions

  • Is luteolin an essential nutrient?
    No. Luteolin is a flavonoid compound found in plants and is not considered an essential nutrient with an established dietary requirement.
  • Are there any approved health claims for luteolin?
    No. There are no EU-authorized health claims for luteolin based on the supplied evidence.
  • Can luteolin supplements replace antioxidant-rich foods?
    No. Supplements should not replace a balanced diet rich in fruits and vegetables, which provide a variety of antioxidants and nutrients.
  • Is luteolin safe for long-term use?
    Currently, data on long-term safety are insufficient to make recommendations.
  • Does luteolin interact with medications?
    There is limited evidence about possible interactions; consult a healthcare professional before starting supplementation.

Evidence Limitations

  • Limited human clinical data available on efficacy and safety
  • Most evidence derived from preclinical or mechanistic studies
  • No official intake guidelines or authorized health claims

References

Last Reviewed

June 2024

Disclaimer: This page is for informational purposes only and does not constitute medical advice. Luteolin supplements have not been established as safe or effective by regulatory authorities for specific health claims. Individuals who are pregnant, breastfeeding, have underlying health conditions, are taking medications, or are planning surgery should consult a healthcare professional before using luteolin or any dietary supplement.