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Nutrient referenceSep 23, 2026
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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
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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
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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
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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
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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
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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
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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
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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
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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…

Gene referenceSep 23, 2026
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… helps move homocysteine into the pathway that supplies building blocks for glutathione. Also called: Cystathionine Beta-Synthase From homocysteine toward glutathione Dr. Purser places CBS in the sulfur-handling pathway that connects homocy…

Gene referenceSep 23, 2026
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CTH helps make cysteine, one of the building blocks your body uses to make glutathione. Also called: Cystathionine Gamma-Lyase From homocysteine toward glutathione Dr. Purser places CTH in the sulfur-handling pathway that connects homocyste…

Gene referenceSep 23, 2026
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The older Purser genetics reference uses the heading “DAOA (AOC1)” in its gut section. Also called: D-Amino Acid Oxidase Activator Two similar names, two different pathways You may see DAOA and AOC1 written together in older materials, but …

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