B Vitamins Panel

Measures the four most clinically significant B vitamins — B1 (thiamine), B6 (pyridoxine), B9 (folate), and B12 (cobalamin). B vitamins are water-soluble cofactors essential for energy production, nerve function, DNA synthesis, and red blood cell formation. Deficiency in any one causes overlapping symptoms of fatigue, cognitive impairment, and neurological dysfunction, making targeted testing valuable for identifying which specific vitamin needs attention.

B vitamins work as cofactors in hundreds of enzymatic reactions, and their water-soluble nature means the body cannot store large reserves — dietary intake must be consistent. This panel tests the four B vitamins most commonly deficient in clinical practice. Vitamin B12 is essential for myelin sheath maintenance (nerve insulation), DNA synthesis, and red blood cell maturation. Deficiency causes megaloblastic anaemia and irreversible neurological damage if prolonged. Risk groups include vegans, vegetarians, those on metformin or proton pump inhibitors, and older adults with reduced absorption. B9 (folate) partners with B12 in DNA synthesis and is critical for neural tube development in pregnancy. Deficiency also causes megaloblastic anaemia. Vitamin B6 is required for neurotransmitter synthesis (serotonin, dopamine, GABA), immune function, and homocysteine metabolism. B1 (thiamine) is essential for carbohydrate metabolism and nerve function — deficiency is more common than recognised, particularly in those with high alcohol intake, diabetes, or bariatric surgery history. This panel costs less than testing these vitamins individually and provides the data needed to guide targeted supplementation rather than a generic B-complex approach.