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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Nutrient referenceSep 23, 2026

Calcium

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…rser’s plan, his course separates its schedule from morning vitamin D and places calcium at bedtime. This is a clinic scheduling approach, not a claim that the two nutrients cannot be absorbed together. Food sources Milk; yogurt; calcium-se…

Nutrient referenceSep 23, 2026

Lithium

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…ntation is approached Lithium is different from an ordinary vitamin. A low-dose supplement is not the same as prescription lithium. If you are considering either form, talk with the clinician who manages your medicines and kidney or thyroid…

Nutrient referenceSep 23, 2026

Lutein

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…on is approached Lutein is an eye-related carotenoid, not a vitamin with a recognized isolated deficiency syndrome. Place any proposed product in the context of the eye diagnosis, diet and the complete eye-health formula. The general redox …

Nutrient referenceSep 23, 2026

Omega-7

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… is approached Omega-7 is a group of fats, not an essential vitamin with a known deficiency syndrome. Ask what goal a proposed product would address in your diet or health. There is no single omega-7 schedule here that fits everyone. What s…

Gene referenceSep 23, 2026

AHCY

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…oose a supplement dose for you. Variant IDs in the teaching reference: rs819147 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

AOC1

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…ing it, responding to it, clearing it Dr. Purser’s genetics reference places AOC1 in the histamine-clearance part of the gut and immune story. The enzyme it encodes, diamine oxidase, helps break down histamine and related amines. That is a …

Gene referenceSep 23, 2026

ATG16L1

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…the same conversation. Those connections do not make an IBS label, Crohn’s disease or another diagnosis interchangeable, and a common variant is not a substitute for a digestive workup. A question to bring to your visit Which part of my his…

Gene referenceSep 23, 2026

BHMT

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…why Dr. Purser looks at several pathways together: the same laboratory marker can sit at the intersection of more than one nutrient-dependent process. The presence of a variant is not, by itself, a reason to add betaine. A question to bring…

Gene referenceSep 23, 2026

BRCA1

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…urser includes BRCA1 in the cancer-risk part of his genetic reference. The essential next step is to identify the exact variant and its clinical classification, then connect it with personal and family cancer history. The listed teaching ma…

Gene referenceSep 23, 2026

BRCA2

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…urser includes BRCA2 in the cancer-risk part of his genetic reference. The essential next step is to identify the exact variant and its clinical classification, then connect it with personal and family cancer history. The listed teaching ma…

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