THE PURSER WELLNESS ENCYCLOPEDIA

Let’s explore “Vitamin B9 / folate deficiency”

Explore this topic as a step-by-step interactive map.MTHFR, the citric acid cycle & ATP
A RELATED COURSEGetting to know your micronutrients

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Nutrient referenceSep 23, 2026

L-Threonine

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…e or a laboratory finding is not automatically a standalone deficiency diagnosis. Assess overall protein intake, absorption and the clinical setting with a qualified clinician. Food sources Protein foods such as eggs, fish, poultry, meat, d…

Nutrient referenceSep 23, 2026

L-Tryptophan

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…e or a laboratory finding is not automatically a standalone deficiency diagnosis. Assess overall protein intake, absorption and the clinical setting with a qualified clinician. Food sources Protein foods such as eggs, fish, poultry, meat, d…

Nutrient referenceSep 23, 2026

Turmeric

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…APA result. A cell-response finding is not a diagnosis of a deficiency in this botanical or compound. Turmeric as a spice differs from concentrated curcumin extracts, especially formulas with absorption-enhancing ingredients. What symptoms…

Nutrient referenceSep 23, 2026

L-Tyrosine

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…e or a laboratory finding is not automatically a standalone deficiency diagnosis. Assess overall protein intake, absorption and the clinical setting with a qualified clinician. Food sources Protein foods such as eggs, fish, poultry, meat, d…

Nutrient referenceSep 23, 2026

L-Valine

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…e or a laboratory finding is not automatically a standalone deficiency diagnosis. Assess overall protein intake, absorption and the clinical setting with a qualified clinician. Food sources Protein foods such as eggs, fish, poultry, meat, d…

Nutrient referenceSep 23, 2026

Vanadium

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…oms can—and cannot—tell you There is no established dietary deficiency syndrome for this specific botanical or compound. Symptoms are not evidence that you need this supplement. Food sources Trace amounts occur in foods such as mushrooms, g…

Nutrient referenceSep 23, 2026

Wild Cherry Bark

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…APA result. A cell-response finding is not a diagnosis of a deficiency in this botanical or compound. Wild-cherry-bark preparations are distinct from cherry fruit foods. Do not substitute homemade bark preparations for a reviewed product. …

Nutrient referenceSep 23, 2026

Zeaxanthin

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…ntioxidant-response category does not diagnose a zeaxanthin deficiency or set a treatment schedule. What symptoms can—and cannot—tell you There is no established dietary deficiency syndrome for this specific botanical or compound. Symptoms …

Gene referenceSep 23, 2026

ATG16L1

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…ether The teaching links the gut story with IL23R, PEMT and folate-related pathways: immune signaling, membranes/bile and nutrient handling can all enter the same conversation. Those connections do not make an IBS label, Crohn’s disease or …

Gene referenceSep 23, 2026

CBS

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…e. That is why a homocysteine discussion can include both B-vitamin cofactors and antioxidant supply. Some inherited disorders involve severe inherited enzyme disorders. A common SNP does not have the same meaning: having a listed variant …

Gene referenceSep 23, 2026

CTH

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…e. That is why a homocysteine discussion can include both B-vitamin cofactors and antioxidant supply. Some inherited disorders involve severe inherited enzyme disorders. A common SNP does not have the same meaning: having a listed variant …

Gene referenceSep 23, 2026

FUT2

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…ether The teaching links the gut story with IL23R, PEMT and folate-related pathways: immune signaling, membranes/bile and nutrient handling can all enter the same conversation. Those connections do not make an IBS label, Crohn’s disease or …

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