THE PURSER WELLNESS ENCYCLOPEDIA

Let’s explore “Vitamin D”

A RELATED COURSEGetting to know your micronutrients

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535 resources for your curiosity89 matching listings grouped; alternative sources stay available.

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Nutrient referenceSep 23, 2026

Andrographis

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An herb used in traditional preparations and sold as an extract. Also called: Andrographis What it does An herb used in traditional preparations and sold as an extract. How this fits a treatment plan Andrographis is an educational entry in …

Nutrient referenceSep 23, 2026

Astaxanthin

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A carotenoid pigment found in some algae and seafood. Also called: Astaxanthin What it does A carotenoid pigment found in some algae and seafood. How supplementation is approached Astaxanthin is an antioxidant pigment, not an essential vita…

Nutrient referenceSep 23, 2026

Biotin

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Helps enzymes process fats, carbohydrates and amino acids. Also called: Biotin What it does Helps enzymes process fats, carbohydrates and amino acids. Possible deficiency symptoms Rare deficiency may cause hair thinning, rash and neurologic…

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 Inositol comes up in discussions of nervous-system support alongside magnesium, amino acids, and omega fats. It may also come…

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

Lithium

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An element found in trace amounts in the environment and used in prescription medicines. Also called: Lithium What it does An element found in trace amounts in the environment and used in prescription medicines. How supplementation is appro…

Nutrient referenceSep 23, 2026

Lutein

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A carotenoid found in foods and in the retina. Also called: Lutein What it does A carotenoid found in foods and in the retina. How supplementation is approached Lutein is an eye-related carotenoid, not a vitamin with a recognized isolated d…

Nutrient referenceSep 23, 2026

Omega-7

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A family of monounsaturated fats that includes palmitoleic acid. Also called: Omega-7 What it does A family of monounsaturated fats that includes palmitoleic acid. How supplementation is approached Omega-7 is a group of fats, not an essenti…

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 Serine connects with both sulfur handling and folate chemistry. It comes up when discussing the route from…

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