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The Vitamin B3 Test measures niacin levels in the blood to evaluate nutritional status and detect deficiencies. Niacin is essential for energy metabolism, DNA repair, and nervous system function. Low levels may lead to pellagra, with symptoms such as diarrhea, dermatitis, dementia, and fatigue. Doctors use this test to assess dietary intake, investigate unexplained symptoms, and monitor patients on supplementation or therapy for metabolic health.
The Vitamin B3 Micronutrient Test measures niacin levels in the blood to assess nutritional status and detect deficiencies or excess. Niacin is essential for energy production, nervous system function, and healthy skin and digestion. This test helps identify malnutrition, absorption problems, or toxicity from supplements, supporting diagnosis and monitoring of overall health and metabolic balance.
Patient must be 18 years of age or older.