Genes & pathways

Gene & pathway reference

FADS1

Encodes an enzyme involved in fatty-acid metabolism.

Updated September 17, 2026 · Educational reference

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Encodes an enzyme involved in fatty-acid metabolism.

Connections in the Purser reference

These are teaching connections, not a diagnosis or a measured effect in your body.

Understanding a result

A gene name is not a test result. Interpretation needs the exact variant, genotype, test method, clinical classification, symptoms and family history. Research associations and common SNPs should not be treated as proven disease-causing findings.

Nutrients and next steps

A genetic marker does not establish a nutrient deficiency or a supplement dose. Bring the original laboratory report to your clinician and compare it with relevant nutritional and clinical findings.

Questions for your visit

Is this a common marker, a pathogenic variant, or an uncertain finding? Does it change my care? Would confirmation or genetic counseling be useful?

Variant IDs in the source reference

These identifiers help you find the associated teaching. Their inclusion is not verification of a gene–variant mapping, disease classification or treatment implication. Use your laboratory’s exact result and a current clinical interpretation.

Names you may see

Fatty Acid Desaturase 1 / D5D

Sources & perspective

This is an editorial adaptation of the Purser Wellness genetics teaching app and genetic rules reference (v2.8). Purser teaching connections are labeled separately from clinical interpretation. Private cases and individual treatment protocols are not reproduced.

Use the public resources below for additional context.

MedlinePlus: understanding genetic resultsNCBI ClinVar: clinical classifications