THE PURSER WELLNESS LIBRARY

Let’s explore 1,25-dihydroxyvitamin D — lab reference

A COURSE FOR YOUR CURIOSITYGetting to know your micronutrients

5 chapters, at your pace

Explore the course

555 discoveries for your curiosity21 matching listings grouped; alternative sources stay available.

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Nutrient referenceSep 23, 2026

Calcium

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Provides structure for bones and teeth and supports muscle and nerve signaling. Also called: Calcium What it does Provides structure for bones and teeth and supports muscle and nerve signaling. Possible deficiency symptoms Long-term low int…

Nutrient referenceSep 23, 2026

Inositol

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A compound involved in cell-membrane signaling. Also called: Inositol One nutrient, more than one teaching context The course includes inositol in nervous-system support alongside magnesium, amino acids and omega fats. The combined Genetic/…

Nutrient referenceSep 23, 2026

Iron

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Helps hemoglobin carry oxygen and supports many cellular processes. Also called: Iron Energy is not enough reason to add iron Dr. Purser’s course connects iron with oxygen transport and energy while identifying it as a safety-sensitive mine…

Nutrient referenceSep 23, 2026

MK-4 & MK-7

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Are forms of vitamin K2, a family involved in activation of vitamin K-dependent proteins. Also called: MK-4 & MK-7 What it does Are forms of vitamin K2, a family involved in activation of vitamin K-dependent proteins. Possible deficiency sy…

Nutrient referenceSep 23, 2026

L-Serine

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An amino acid used in protein synthesis and other metabolic processes. Also called: Serine An amino acid with two pathway connections The homocysteine chapters place serine in the transsulfuration discussion, while the practitioner course c…

Gene referenceSep 23, 2026

ADIPOQ

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ADIPOQ encodes adiponectin, a hormone released by fat tissue that participates in insulin sensitivity and fat metabolism. Its name often appears in discussions of triglycerides, body composition and metabolic health. Also called: Adiponecti…

Gene referenceSep 23, 2026

AHCY

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The genetic-architecture chapter explains that S-adenosylmethionine (SAM) donates methyl groups and becomes S-adenosylhomocysteine (SAH). Also called: Adenosylhomocysteinase Methyl-group use leaves another molecule behind The genetic-archit…

Gene referenceSep 23, 2026

APOE

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APOE encodes a protein that carries lipids between cells. The familiar APOE e2, e3 and e4 groupings depend on the combination of rs429358 and rs7412, not on either marker read in isolation. Also called: Apolipoprotein E Lipid transport and …

Gene referenceSep 23, 2026

BHMT

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The practitioner course includes BHMT in Dr. Also called: BHMT08, Betaine-Homocysteine S-Methyltransferase Another route through the homocysteine map The practitioner course includes BHMT in Dr. Purser’s methylation and homocysteine cluster…

Gene referenceSep 23, 2026

BRCA2

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BRCA2 helps repair damaged DNA. Clinically classified pathogenic variants can affect inherited cancer risk; a common SNP or a variant of uncertain significance is a different finding. Also called: Breast Cancer 2 DNA repair and inherited ca…

Gene referenceSep 23, 2026

CBS

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Dr. Also called: Cystathionine Beta-Synthase From homocysteine toward glutathione Dr. Purser places CBS in the sulfur-handling pathway that connects homocysteine with glutathione production. In that map, CBS concerns the first step moving h…

Gene referenceSep 23, 2026

CD14

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CD14 helps immune cells recognize microbial components, including bacterial lipopolysaccharide, as part of innate immune signaling. This places it upstream of some cytokine responses. Also called: Cluster of Differentiation 14 How immune ce…

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