Vitamin Deficiency Test lab tests in RequestATest Lab Test Test Cost Vitamin D, 25-Hydroxy|25-Hydroxycalciferol - Vitamin D Blood Test $59.00 Folate $49.00 Methylmalonic Acid, Urine|MMA Urine - Methylmalonic Acid Urine Test $149.00 Vitamin A|Retinol - Vitamin A blood test $69.00 Vitamin B6 $95.00 Vitamin B12 $49.00 Vitamin B1, Whole Blood $69.00 Vitamin B12 and Folates - Vitamin B12 deficiency blood test $59.00 Vitamin K1 $199.00 Vitamin D, 1.25-dihydroxy|Calcitriol|1,25(OH) Vitamin D|1.25-Dihydroxycholecalciferol - vitamin d test cost $89.00 Vitamin C|Ascorbic Acid $99.00 Vitamin K1 $149.00 Vitamin C $99.00 Folate|Folic Acid - Folate Blood Test $49.00 Homocysteine - Homocysteine Test $69.00 Methylmalonic Acid, Blood $99.00 Vitamin B1|Thiamine - Thiamine Blood Test $69.00 Vitamin C (With Dilution) $229.00 Methylmalonic Acid, Blood|MMA Blood - Methylmalonic Acid Test (Blood) $99.00 Vitamin A $59.00 Vitamin B12 and Folates $69.00 Vitamin B6 $79.00 Vitamin B12|B12|Cobalamin - Vitamin B12 Testing $49.00 Vitamin E|Alpha Tocopherol|Vitamin E1 - Vitamin E Blood Test $63.00