Metabolic & Weight Management

FGF-21

Fibroblast Growth Factor 21 (FGF-21)

A metabolic hormone produced by the liver that improves insulin sensitivity, promotes fat oxidation, and has anti-aging properties. Considered a potential treatment for metabolic syndrome.

MetabolismInsulin SensitivityFat LossLongevityLiver

Quick Reference

Category
Metabolic & Weight Management
Research Claims
3 reviewed
Explore Research

Mechanism of Action

FGF-21 binds to FGFR1/KLB receptor complexes in adipose tissue, liver, and brain. It activates AMPK and PPAR-gamma pathways, improving insulin sensitivity, promoting fat oxidation, and reducing lipogenesis.

Health Claims & Evidence

Improves insulin sensitivity and glucose metabolism

Moderateanimal studies and early human trials show metabolic improvements

Promotes fat oxidation and weight loss

ModerateAMPK activation and lipolysis promotion documented

Anti-aging and longevity effects

PreliminaryFGF-21 overexpression extends lifespan in mice

Short-Term Effects

Improved metabolic markers, reduced triglycerides.

Long-Term Effects

Potential for sustained metabolic improvements and longevity benefits.

Side Effects

Bone loss at high doses (animal studies), injection site reactions.

Contraindications

Monitor bone density with long-term use.

This profile is provided for educational research only. It is not a treatment recommendation or dosing guide. Human evidence, safety information and regulatory status vary by substance. Verify primary sources and consult a qualified healthcare professional for medical decisions.

Research Papers

FGF21 regulates energy metabolism

Kharitonenkov et al. · Journal of Clinical Investigation · 2005

Educational research only. This profile is not a treatment recommendation or dosing guide. Human evidence, safety information and regulatory status vary by substance. Consult a qualified healthcare professional for medical decisions.

Related Peptides

Explore the research further

Our AI Research Advisor can help you explore the evidence on FGF-21 and related peptides, and prepare an educational research summary.

Explore Research