Quest Diagnostics High Fat Diet (Ex. Ketogenic) Vitamin Deficiency Test Panel
Type
Blood Testing
Biomarkers
10
Duration
30 min
Results
3 days
Comprehensive blood test to measure 8 vitamins and minerals, identifying potential deficiencies in individuals following high-fat diets.
This panel measures vitamin B1 (thiamine), vitamin B6 (pyridoxine), vitamin B7 (biotin), vitamin B12 (cobalamin), calcium, iron, ferritin, magnesium, and phosphorus levels in your blood. Identifying and correcting deficiencies is crucial for overall health, as your body doesn't produce most nutrients. Dietary restrictions, like keto, can impact nutrient absorption. This test helps you and your doctor determine if dietary modifications or supplementation are needed.
Key Details
- Biomarkers
- 1 marker (25-OH vitamin D)
- Fasting Required
- No
- Sample Type
- Blood draw
- Turnaround
- 24–72 hours
- Optimal Range
- 40–60 ng/mL (100–150 nmol/L)
- Common Use
- Deficiency screening, supplementation monitoring
Who Is This For?
Anyone living in regions with limited sunlight or who spends most time indoors. People experiencing bone pain, muscle weakness, or frequent illness. Those with darker skin (melanin reduces vitamin D synthesis). Older adults, as the skin's ability to produce vitamin D decreases with age. Anyone supplementing with vitamin D who wants to verify they're in the optimal range.
What's Included
Preparation Required
No fasting required. No special preparation needed. If you supplement with vitamin D, continue your normal dosage — the test is measuring your steady-state level, not an acute response.
Biomarkers Tested
10Essential for energy metabolism and nervous system function. Thiamine deficiency can cause beriberi (nerve damage) and Wernicke-Korsakoff syndrome. Common in chronic alcohol use and malabsorption conditions.
Vitamin B6 (Pyridoxine) is important for protein metabolism, cognitive development, and immune function. Deficiency can lead to anemia and neurological issues.
A metal found in canned foods, solder, and industrial materials. While small amounts of inorganic tin are relatively non-toxic, high levels can cause gastrointestinal irritation. Organotin compounds are more toxic and affect the immune and nervous systems.
Essential for nerve function, DNA synthesis, and red blood cell formation. B12 deficiency can cause anemia, neuropathy, fatigue, and cognitive impairment. Common in vegans, vegetarians, older adults, and those taking metformin or acid-reducing medications.
The most abundant mineral in the body, essential for bone health, muscle contraction, nerve function, and blood clotting. Blood calcium is tightly regulated by parathyroid hormone and vitamin D. Abnormal levels can indicate parathyroid disorders.
A mineral essential for oxygen transport (in hemoglobin), energy production, and immune function. Serum iron measures the amount circulating in blood, but ferritin and TIBC provide a more complete picture of iron status.
The primary iron storage protein. Ferritin reflects total body iron stores and is the first marker to drop in iron deficiency. However, ferritin also rises with inflammation, infection, and liver disease, which can mask true iron deficiency.
Involved in over 300 enzymatic reactions including energy production, muscle function, and nerve signaling. Magnesium deficiency is common and associated with muscle cramps, anxiety, insomnia, and increased cardiovascular risk.
A mineral essential for bone formation, energy metabolism (ATP), and acid-base balance. Phosphate levels are inversely related to calcium and regulated by parathyroid hormone and vitamin D.
The best indicator of overall vitamin D status. Vitamin D is essential for calcium absorption, bone health, immune function, and mood regulation. Deficiency is extremely common, especially in northern latitudes, and linked to increased disease risk.
+ $6.00 Physician Service Fee
- Category
- Diagnostic
- Sample Type
- Blood draw
- Duration
- 30 min
- Results
- 3 days