Biomarker Reference · Vitamins / Nutrients

What does the Direct Vitamin and Nutrient Markers (e.g. vitamin D, vitamin A, vitamin E, CoQ10, homocysteine) test measure?

Q: What is the reference range for Direct Vitamin and Nutrient Markers (e.g. vitamin D, vitamin A, vitamin E, CoQ10, homocysteine)?

The standard reference range for Direct Vitamin and Nutrient Markers (e.g. vitamin D, vitamin A, vitamin E, CoQ10, homocysteine) is Reported per analyte against method-specific serum intervals # REVIEWER FLAG: Directly measured serum nutrient intervals should align with standard clinical ranges where applicable — reviewer to confirm reported analytes and intervals and note where they differ from conventional laboratory ranges.. Reference ranges vary by laboratory and assay platform — interpret in context of the issuing laboratory's stated range.

Direct Vitamin and Nutrient Markers (e.g. vitamin D, vitamin A, vitamin E, CoQ10, homocysteine) (Vitamins / Nutrients) is a clinical biomarker used in vitamins-minerals assessment. The panel includes directly measured serum nutrients and related markers, such as vitamin D (25-OH), fat-soluble vitamins, coenzyme Q10, and homocysteine, which have established physiology and clinical measurement conventions. It is measured in 1 laboratory test on BiomarkersLabs.com.

Reference Range: Reported per analyte against method-specific serum intervals # REVIEWER FLAG: Directly measured serum nutrient intervals should align with standard clinical ranges where applicable — reviewer to confirm reported analytes and intervals and note where they differ from conventional laboratory ranges.
Units: ng/mL, µg/mL, µmol/L
Measured In: 1 test
Category: Vitamins & Minerals

Functional medicine optimalInterpreted against established clinical thresholds where they exist (e.g. vitamin D sufficiency); see the individual test pages for these analytes

What is Direct Vitamin and Nutrient Markers (e.g. vitamin D, vitamin A, vitamin E, CoQ10, homocysteine)?

The panel includes directly measured serum nutrients and related markers, such as vitamin D (25-OH), fat-soluble vitamins, coenzyme Q10, and homocysteine, which have established physiology and clinical measurement conventions.

Why is Direct Vitamin and Nutrient Markers (e.g. vitamin D, vitamin A, vitamin E, CoQ10, homocysteine) measured?

These directly measured markers carry the clearest clinical validity within the panel, with established interpretation — for example serum 25-OH vitamin D for vitamin D status and homocysteine as a functional marker of B-vitamin status. They anchor the panel's more exploratory functional markers and can be compared with conventional laboratory results.

Reference ranges

Standard reference: Reported per analyte against method-specific serum intervals # REVIEWER FLAG: Directly measured serum nutrient intervals should align with standard clinical ranges where applicable — reviewer to confirm reported analytes and intervals and note where they differ from conventional laboratory ranges.
Functional medicine optimal: Interpreted against established clinical thresholds where they exist (e.g. vitamin D sufficiency); see the individual test pages for these analytes
Units: ng/mL, µg/mL, µmol/L

Reference ranges vary by laboratory and assay platform. Interpret in context of the issuing laboratory's stated range.

Tests that measure Direct Vitamin and Nutrient Markers (e.g. vitamin D, vitamin A, vitamin E, CoQ10, homocysteine)

1 test on BiomarkersLabs.com include this biomarker.

BML-VIT-008Comprehensive

NutrEval FMV (Comprehensive Functional Nutritional Assessment)

Direct Vitamin and Nutrient Markers (e.g. vitamin D, vitamin A, vitamin E, CoQ10, homocysteine) reference range in this test: Reported per analyte against method-specific serum intervals # REVIEWER FLAG: Directly measured serum nutrient intervals should align with standard clinical ranges where applicable — reviewer to confirm reported analytes and intervals and note where they differ from conventional laboratory ranges.

Related clinical conditions

Related Biomarkers

Frequently measured alongside

Organic Acids (Metabolic Analysis Markers — energy, B-vitamin, neurotransmitter, and detoxification-related)Organic Acids1 test Amino Acids (essential, non-essential, and intermediary metabolites)Amino Acids1 test Essential and Metabolic Fatty Acids (omega-3, omega-6, omega-9, saturated and trans fats; e.g. EPA, DHA, arachidonic acid, omega-3 index)Fatty Acids1 test Nutrient and Toxic Elements (e.g. magnesium, zinc, copper, selenium; lead, mercury, arsenic, cadmium)Elements1 test Oxidative Stress and Antioxidant Markers (e.g. 8-OHdG, lipid peroxides, glutathione, CoQ10, vitamin E)Oxidative Stress2 tests

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