THE PURSER WELLNESS LIBRARY

Let’s explore “Vitamin A, retinol — lab reference”

A COURSE FOR YOUR CURIOSITYGetting to know your micronutrients

5 chapters, at your pace

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670 discoveries for your curiosity58 matching listings grouped; alternative sources stay available.

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Gene referenceSep 23, 2026

CD14

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…ossible triggers been assessed? Variant IDs in the teaching reference: rs2569191 Where the VARS Triad and MTHFR Daily fit If you are exploring homocysteine or cytokines, Dr. Purser may discuss MTHFR Daily and the VARS Triad: VARS Glutathion…

Gene referenceSep 23, 2026

CHDH

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…oose a supplement dose for you. Variant IDs in the teaching reference: rs12676 Where the VARS Triad and MTHFR Daily fit If you are exploring homocysteine or cytokines, Dr. Purser may discuss MTHFR Daily and the VARS Triad: VARS Glutathione,…

Gene referenceSep 23, 2026

COMT

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…you review a COMT result, your clinician may also look at B vitamins, magnesium, inositol, amino acids, fatty acids, and antioxidant findings. The gene result does not measure brain chemicals or replace mental health care. A question to bri…

Gene referenceSep 23, 2026

DHFR

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…c acid, folic acid and methylfolate are not interchangeable labels: they enter folate chemistry differently. The clinical conversation should include the actual supplement, dose, tolerance, B12 status and relevant medicines rather than assu…

Gene referenceSep 23, 2026

FADS1

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…choose a supplement dose for you. Variant IDs in the source reference: rs176567 Where the VARS Triad and MTHFR Daily fit If you are exploring homocysteine or cytokines, Dr. Purser may discuss MTHFR Daily and the VARS Triad: VARS Glutathione…

Gene referenceSep 23, 2026

FADS2

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…choose a supplement dose for you. Variant IDs in the source reference: rs3834458 Where the VARS Triad and MTHFR Daily fit If you are exploring homocysteine or cytokines, Dr. Purser may discuss MTHFR Daily and the VARS Triad: VARS Glutathion…

Gene referenceSep 23, 2026

FOLH1

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…ters include FOLH1 in folate handling. The earlier genetics reference explains its role in breaking down polyglutamated food folates into forms that can be absorbed. This is a different step from MTHFR conversion or SLC19A1 transport into c…

Gene referenceSep 23, 2026

FOLR1

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…nsport at the brain’s barriers. Blood folate and folate availability in the nervous system are not identical measurements. Also called: Folate Receptor 1 Folate transport has tissue-specific roles FOLR1 encodes folate receptor alpha, which …

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