THE PURSER WELLNESS ENCYCLOPEDIA

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Nutrient referenceSep 23, 2026

MK-4 & MK-7

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…ved in activation of vitamin K-dependent proteins. Possible deficiency symptoms There is no separate symptom checklist that diagnoses an MK-4 or MK-7 deficiency. How supplementation is approached MK-4 and MK-7 are forms of vitamin K2. Dr. P…

Nutrient referenceSep 23, 2026

NADH

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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 The body produces and recycles NADH. Food content…

Nutrient referenceSep 23, 2026

Noni Berry

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…APA result. A cell-response finding is not a diagnosis of a deficiency in this botanical or compound. Noni juice and concentrated extracts vary in composition. Include drinks as well as capsules in the supplement history. What symptoms can…

Nutrient referenceSep 23, 2026

Omega-7

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…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 symptoms can—and canno…

Nutrient referenceSep 23, 2026

L-Phenylalanine

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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

Piperine

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…APA result. A cell-response finding is not a diagnosis of a deficiency in this botanical or compound. Piperine is concentrated black-pepper extract and can change exposure to other compounds; it should be included in medication review. Wha…

Nutrient referenceSep 23, 2026

Potassium

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…d balance, nerve signaling and muscle contraction. Possible deficiency symptoms Low blood potassium can cause weakness, constipation or abnormal heart rhythms. Medicines and fluid losses are common considerations. How supplementation is app…

Nutrient referenceSep 23, 2026

Pycnogenol

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…APA result. A cell-response finding is not a diagnosis of a deficiency in this botanical or compound. Pycnogenol is a branded pine-bark extract; it should not be used as a generic name for every pine-bark product. What symptoms can—and can…

Nutrient referenceSep 23, 2026

Quercetin

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…APA result. A cell-response finding is not a diagnosis of a deficiency in this botanical or compound. Quercetin may be supplied alone or with ingredients such as bromelain or other antioxidants. Check the complete formula. What symptoms ca…

Nutrient referenceSep 23, 2026

Resveratrol

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…APA result. A cell-response finding is not a diagnosis of a deficiency in this botanical or compound. Resveratrol extracts differ from resveratrol-containing foods. Concentration and companion ingredients vary. What symptoms can—and cannot…

Nutrient referenceSep 23, 2026

Rhodiola

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…APA result. A cell-response finding is not a diagnosis of a deficiency in this botanical or compound. Rhodiola extracts and multi-ingredient energy/adaptogen formulas differ. Record the exact product if discussing a trial. What symptoms ca…

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