HFE Gene

What is the HFE gene?

HFE encodes homeostatic iron regulator, a protein involved in iron homeostasis. It belongs to the Vitamin Metabolism category and is part of the Vitamin & Nutrient Metabolism biological cluster. HFE encodes the hereditary hemochromatosis protein that regulates iron absorption and the hepcidin signaling pathway.

Biological role and pathway

HFE is involved in the iron homeostasis pathway, which plays a central role in regulating physiological processes relevant to immune defence, cellular energy, and systemic homeostasis. Genes within the Vitamin & Nutrient Metabolism cluster work together to maintain balanced function across interconnected biological systems.

Variants in genes within this pathway may influence an individual's predisposition to altered function in these systems — particularly under conditions of physiological stress such as viral infection or prolonged illness.

Known genetic variants

The following variants (SNPs) in the HFE gene have been studied in relation to vitamin metabolism and chronic illness. Each variant represents a single nucleotide position where individuals may carry different alleles.

• rs1799945— HFE variant
• rs1800562— HFE variant

Conditions studied in relation to HFE

Research into HFE variants has explored associations with the following conditions. These are areas of scientific investigation and do not imply that HFE causes or treats any condition.

Genetic insights from DNA data

Consumer DNA files from 23andMe, AncestryDNA, and MyHeritage contain raw SNP data. When you upload your file to ChronicDNA, the analysis engine checks your genotype against a curated panel of 80+ genes selected for their relevance to Long COVID, ME/CFS, and connected biological pathways - some of which may include HFE and related genes in the vitamin & nutrient metabolism pathway.

The report is educational - it explains which variants you carry, what the research says about them, and how they fit into the biological pathways most relevant to chronic illness. Results are presented in plain English with appropriate scientific context, no medical jargon, no scare tactics. All results should be discussed with a qualified healthcare provider.

Related genes in the Vitamin & Nutrient Metabolism pathway

HFE does not act in isolation. The following genes are functionally related and may be analysed together for a more complete picture of your genetic predispositions.

Frequently asked questions