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Vitamins

Vitamin B3 (Niacin) Blood Test

Vitamin B3 (niacin) is considered a key precursor to NAD+, which may support energy production and cellular recovery during physical training. Active individuals may have increased metabolic demands for niacin. Consult a sports medicine professional for guidance.

Doctor's Assessment Included

Vitamin B3 (Niacin): what this test measures

This test measures niacin (vitamin B3) levels in your blood, expressed in ug/L. It may help assess whether your body has adequate niacin for NAD+ production and metabolic processes. Your healthcare provider can interpret results in the context of your health.

Vitamin B3 (Niacin): why this value matters

For active individuals, NAD+ derived from niacin may play a role in aerobic energy production, muscle recovery, and adaptation to training stress. Suboptimal levels could potentially affect performance and recovery. Discuss your results with a sports medicine professional.

Vitamin B3 (Niacin): when is testing worthwhile?

Testing may be considered when experiencing skin rashes, digestive discomfort, or cognitive changes that could suggest niacin insufficiency. Healthcare providers may also recommend testing for individuals with restrictive diets or conditions affecting nutrient absorption.

Vitamin B3 (Niacin): symptoms of a high or low value

Low Levels

Some people with low vitamin B3 may experience skin inflammation, digestive problems, fatigue, or difficulty concentrating. In more severe cases, a condition known as pellagra may develop. A healthcare provider can help evaluate symptoms and determine the underlying cause.

High Levels

Elevated niacin levels, particularly from supplementation, may sometimes cause flushing, itching, or gastrointestinal discomfort. Some people may experience liver sensitivity at high doses. If your levels appear elevated, consult your healthcare provider about appropriate adjustments.

Vitamin B3 (Niacin): lifestyle and this value

Foods considered rich in niacin include poultry, fish, legumes, whole grains, and mushrooms. The body can also convert tryptophan from protein-rich foods into niacin. Some people may benefit from a varied, balanced diet. Discuss supplementation with your healthcare provider.

Vitamin B3 (Niacin): frequently asked questions

What is NAD+ and why is it important?
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme believed to be involved in energy production, DNA repair, and cellular signalling. Vitamin B3 is considered a key precursor to NAD+. Your healthcare provider can explain how this relates to your overall health.
Can niacin supplementation cause flushing?
Some forms of niacin supplementation may cause temporary skin flushing, warmth, or redness in certain individuals. This is generally considered harmless but can be uncomfortable. Your healthcare provider can recommend appropriate forms and dosages.
Is it possible to get enough niacin from diet alone?
Many people are believed to obtain adequate niacin through a balanced diet that includes poultry, fish, legumes, and whole grains. However, individual needs may vary. Consult your healthcare provider or a dietitian to assess whether your dietary intake is sufficient.

Tests with related values

These panels measure values from the same category as this marker.

Whoop

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A 53-biomarker women's health panel inspired by the WHOOP Women's Health Panel — fertility, cycle and thyroid hormones plus a complete metabolic and nutrient base.

Complete Blood Count (CBC) Leukocyte Differential ALP (Alkaline Phosphatase) ALT (Alanine Aminotransferase) AST (Aspartate Aminotransferase) Albumin Total Protein Bilirubin (Total) ApoB (Apolipoprotein B) Total Cholesterol LDL Cholesterol HDL Cholesterol Triglycerides Lipoprotein(a) Urea (BUN) Creatinine eGFR (Estimated Glomerular Filtration Rate) Calcium Bicarbonate Chloride Sodium Potassium Magnesium Cortisol DHEA-S Estradiol (E2) FSH (Follicle Stimulating Hormone) LH (Luteinizing Hormone) SHBG (Sex Hormone Binding Globulin) Total Testosterone Free Testosterone TSH (Thyroid Stimulating Hormone) Glucose (Fasting) HbA1c (Glycated Hemoglobin) Insulin (Fasting) HOMA-IR CRP (C-Reactive Protein) Homocysteine Ferritin Iron (Serum) Transferrin Transferrin Saturation Vitamin D (25-OH) AMH (Anti-Müllerian Hormone) Progesterone Prolactin TPO Antibodies Free T3 (Triiodothyronine) Free T4 (Thyroxine) Leptin Vitamin B12 Folate (Folic Acid) Phosphorus
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Health Checkups

InsideTracker

A 35-biomarker performance and longevity panel inspired by InsideTracker Ultimate — covering heart, hormones, metabolism, inflammation, recovery and iron status.

SHBG (Sex Hormone Binding Globulin) TSH (Thyroid Stimulating Hormone) ALT (Alanine Aminotransferase) LDL Cholesterol GGT (Gamma-Glutamyl Transferase) Cortisol DHEA-S Estradiol (E2) Free Testosterone Total Testosterone Folate (Folic Acid) Vitamin B12 Calcium Ferritin Iron (Serum) Magnesium Potassium Progesterone Sodium Transferrin CRP (C-Reactive Protein) Glucose (Fasting) HbA1c (Glycated Hemoglobin) ApoB (Apolipoprotein B) HDL Cholesterol Total Cholesterol Albumin AST (Aspartate Aminotransferase) Vitamin D (25-OH) Insulin (Fasting) Leukocyte Differential Creatine Kinase (CK) Transferrin Saturation Triglycerides Basic Blood Count
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Whoop

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A 50-biomarker performance panel inspired by the WHOOP Performance Health Panel — recovery, blood production, thyroid, hormones, iron and nutrient status for people who train.

Complete Blood Count (CBC) Leukocyte Differential ALP (Alkaline Phosphatase) ALT (Alanine Aminotransferase) AST (Aspartate Aminotransferase) Albumin Total Protein Bilirubin (Total) ApoB (Apolipoprotein B) Total Cholesterol LDL Cholesterol HDL Cholesterol Triglycerides Lipoprotein(a) Urea (BUN) Creatinine eGFR (Estimated Glomerular Filtration Rate) Calcium Bicarbonate Chloride Sodium Potassium Magnesium Cortisol DHEA-S Estradiol (E2) FSH (Follicle Stimulating Hormone) LH (Luteinizing Hormone) SHBG (Sex Hormone Binding Globulin) Total Testosterone Free Testosterone TSH (Thyroid Stimulating Hormone) Glucose (Fasting) HbA1c (Glycated Hemoglobin) Insulin (Fasting) HOMA-IR CRP (C-Reactive Protein) Homocysteine Ferritin Iron (Serum) Transferrin Transferrin Saturation Vitamin D (25-OH) IGF-1 (Insulin-like Growth Factor) Creatine Kinase (CK) Reticulocytes Free T3 (Triiodothyronine) Free T4 (Thyroxine) Vitamin B12 Folate (Folic Acid)
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Complete Health

360 Health

Broad health panel: hormones, thyroid, vitamins, lipids, liver, kidney, and blood count.

HbA1c (Glycated Hemoglobin) TSH (Thyroid Stimulating Hormone) Triglycerides Urea (BUN) Creatinine eGFR (Estimated Glomerular Filtration Rate) Free T4 (Thyroxine) LDL Cholesterol Liver Function Test (LFT) SHBG (Sex Hormone Binding Globulin) Vitamin B12 Vitamin D (25-OH) Total Testosterone Free T3 (Triiodothyronine) Ferritin HDL Cholesterol Albumin Total Cholesterol Basic Blood Count
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Vitamin B3 (Niacin)

€81,-